12.05amThe winner of this match will face the winner of Elena Vesnina and Roberta Vinci.
12.07amIt's Jamie Hampton's first time in the third round of a Grand Slam. She reached the second round here last year, as well as at Wimbledon.
12.10amSerena Williams is next match on after this one. She takes on Ayumi Morita of Japan. Then it's time for Murray. So fear not, I don't think it will be too long before he's on. If you have stayed up this late, you may as well stay up a little later...
12.12amLaura Robson will be on pretty late. Around 5.15am by estimate. But if you can, we'd love for you to join us.
12.13amBut now down to action, with Azarenka serving first.
Azarenka 1-0* HamptonA confident start from the American to take the first point, but Azarenka comes back to take the next four points to hold serve.
12.19amNo signs of nerves so far from Hampton. She goes long with a forehand, but doesn't mind going for another one straight after. Then she nearly finds the line with another, which might have been worth a challenge.
12.20amWow, you cannot give Azarenka an inch it seems. She'll take a mile. Brilliant forehand of her own and we're at deuce.
Azarenka *1-1 HamptonA good hold from Hampton there. Azarenka got in, but she kept her cool and finished the game off. Still might to have enough to win this, but her forehand looks pretty tasty.
12.27amCouple of break points for Azarenka due to some unforced errors from Hampton...
12.28amAzarenka wastes both though. She fired long after a decent rally with the second. You expect Azarenka to win those points of attrition.
Azarenka *3-1 HamptonBREAK! She doesn't make the same mistake... well, thrice. She gets the break at the third time of asking after Hampton dumps the ball into the net.
12.30amYannina Wickmayer and Maria Kirilenko are underway over on Hisense, while Svetlana Kuznetsova and Carla Suarez Navarro are away on court number two.
12.32amI don't think Hampton has quite got enough to trouble Azarenka, especially when she looks in this form. Formidable. A few mistakes, but not sloppy ones really. She's perhaps just going for a bit too much.
12.32amAs I say that, Hampton strikes a lovely cross-court winner to bring up deuce.
12.34amAzarenka slams the door shut. She puts in a wide serve, forcing her opponent to stretch for the return. She then comes to the net to kill the point off.
12.35amWhat a rally! Hampton was on the offensive, pulling Azarenka all over the court. Just at the right time, she steps up into the mid-court and dispatches another sweet forehand.
12.36amAzarenka replies with a textbook forehand of her own. This has been some great tennis so far...
Azarenka 4-1* HamptonHampton flicks a half volley at the net just wide and Azarenka holds. A big hold in the contest of the set, maybe. We'll see if Hampton can hold, and then if she can trouble Azarenka once more. We'll know a lot more at the next changeover.
12.42amSuperb running forehand from Hampton! Azarenka was completely in control of that point, but a flick of the wrist and she gets the ball back in play. Azarenka wasn't set for it. One break point saved.
Azarenka *5-1 HamptonBREAK! A simply gorgeous lob by Azarenka. Hampton's approach shot let a little to be desired, but the Belarusian's lob landed flush on the line. She'll serve for the set now.
12.45amTwo double faults in a row from Azarenka. We're at 30-30 now. Surely she's not getting tight?
12.46amAnother double fault brings up deuce. What's going on here?
12.47amBreak point Hampton. Azarenka's first serve deserted her again, and her second was tentative and bounced awfully close to the line.
12.48amIt was there for Hampton, but her cross-court forehand strays just an inch or two too far! So very close to getting one of the breaks back there.
12.48amAnother break point for Hampton. She latches onto a short ball, running around to whip the forehand away. But an ace from Azarenka gets her back to deuce.
12.49amBreak point number three for Hampton. She's certainly testing Vika here.
Azarenka 5-2* HamptonBREAK! Finally, she gets the breakthrough she probably deserves. She was helped by some really lax play from Azarenka, but still trails by a break in this set.
1.34amThat was a wayward forehand at a crucial moment from Azarenka. She swipes at the floor with her racquet in frustration.
Azarenka 6-2 *3-5 HamptonWow! Gutsy play from the American. A big second serve helped her set up game point, and she found another forehand winner after stepping up to the net. She's now just one game from levelling the score.
1.37amTwo set points for Hampton. She brings it up with a quite stupendous forehand return that Azarenka doesn't even see.
1.38amHampton goes long with a couple of shots and we're back at deuce.
Azarenka 6-2 4-5* HamptonHampton flinches with the finishing line in sight. She misses four forehands in a row, but will now serve to force a third set. Can she hold her nerve?
1.42amHampton has called for the trainer. The problem is with her lower back. She hasn't really been struggling with it, not visibly anyway. A full medical timeout of three minutes has been called for as she leaves the court for treatment.
1.45amHopefully Hampton won't be forced into a retirement. That would be so unfortunate, given that she has the world number one on the ropes.
1.47amThe American returns to the court, which is great. How much will that problem be affecting her? We're about to find out...
1.49amWow! That was a seriously well-disguised drop shot from the baseline by Hampton. The crowd really are behind her now. But a second drop shot in a row might be a sign that her injury is affecting her...
1.50amTwo set points for Hampton. Azarenka went too long, but decided to challenge anyway. It was unsuccessful.
Azarenka 6-2 4-6 HamptonSET! We're going to a decider! Hampton grimaced for the first time in the last game. She's getting more treatment at the changeover now.
1.52amHampton finds the corner with another delicious forehand. Another grimace, though. 0-15 on Azarenka's serve.
1.54amThe American goes for another drop shot, but this time cuts it into the net. Her face is contorting at the end of each point now, I'm not sure how much longer this'll last. It's such a shame, because she has the measure of Azarenka at the moment.
1.57amHampton runs around to get on her forehand and casually swipes a winner. Azarenka isn't really taking advantage of this situation.
1.59amHampton was break point down then, but her trusty forehand comes up trumps yet again. She follows that with an ace.
Azarenka 6-2 4-6 *1-1 HamptonHampton holds. The 23-year-old from Alabama is giving a fantastic account of herself here, as another forehand passes by Azarenka. That's 22 in total from that side alone in this match.
2.03amAzarenka cuts a rather frustrated figure out on court now. She's unable to read the American's forehand, which has amazing disguise on it. Hampton now has two break points...
Azarenka 6-2 4-6 1-2* HamptonBREAK! Hampton breaks! Amazing scenes on Rod Laver. The crowd are absolutely loving it, while Azarenka looks ready to burst.
2.05amThe defending champion is in deep trouble at the moment. Apart from grimaces, Hampton's back doesn't really look to be troubling her.
2.08amThis is stunning tennis from Hampton.She can put that forehand on a sixpence. But she has to fight off a break point here...
Azarenka 6-2 4-6 *2-2 HamptonBREAK! And there it is, Azarenka breaks straight back. The crowd hardly clap. They're right behind Hampton in this one!
Azarenka 6-2 4-6 3-2* HamptonQuick hold for the world number one. She served up her sixth double fault in that game, but she gets it on the board.
Azarenka 6-2 4-6 *4-2 HamptonBREAK! Hampton's back problem is clearly evident now, as she swings at the ball rather than the fluid motion we've become accustomed to in this match. Azarenka edges ahead.
2.17amHampton strokes another forehand winner. That's 26 now. Amazing.
2.17amThree break points Hampton. This truly is unbelievable. The American is playing inspired tennis.
2.19amAll three gone. Azarenka digs deep, but in truth Hampton was at fault.
2.20amAdvantage Azarenka. If she holds here, I think that'll be game over.
Azarenka 6-2 4-6 5-2* HamptonThe forehand deserts Hampton this time. She got too much on it and the ball sailed past the baseline. It's not over 'til it's over... but it might be over...
2.21amGAME, SET AND MATCH! Kirilenko 7-6 6-3 Wickmayer
2.24amGAME, SET AND MATCH! Azarenka 6-4 4-6 6-2 Hampton
2.25amCommiserations for Hampton, she played beautifully. What could've been if not for the back problem. She's won plenty of friends in Melbourne and no doubt has a bright future in the game.
2.28amBut it's the world number one who wins through to the next round, where she will play either Elena Vesnina or Roberta Vinci, who are fighting it out on Margaret Court. It's currently on serve in the first set.
2.30amSerena Williams is up next on Rod Laver. She faces Ayumi Morita. I can't see Serena having the same problems that Azarenka just had, but then again I didn't think Hampton had enough to trouble the Belarusian. So what do I know?
2.35amAs you're no doubt aware, the second part of Lance Armstrong's interview with Oprah Winfrey is currently airing on TV. We have live coverage of that with our Editor, Neil Wilkes.
2.40amBut at Melbourne Park, Vesnina is serving at 5-4 down in the first set. Both players have broken once.
2.41amJuan Martin del Potro and Jeremy Chardy are underway on Hisense. The Frenchman has an early break and is facing the Argentine's serve at 3-0 up.
2.42amAndreas Seppi and Marin Cilic have also began their match on court number two.
3.07amThe Sunday Times tennis correspondent Barry Flatman on Twitter: "No wonder Jamie Hampton looked in pain against Vika. She was playing with two herniated disks in her lower back. Hampton has had that condition since last year's French Open."
Williams 6-1 6-3 MoritaGAME, SET AND MATCH! Another backhand from Morita's second serve - this time cross-court - seals the deal for Williams. Comfortable match, really. A bit of trouble at the beginning of the second, but nothing she couldn't handle.
3.54amAndy Murray is next on Rod Laver. We'll go straight to that, but let's check in on the potential shock over on Hisense, where Del Potro is a set and a break down to Chardy.
3.55amDelpo, facing two set points, has just hit a marvelous cross-court forehand winner. Can he do it again?
Chardy 6-3 6-3 Del PotroSET! Wow, the Argentine is in deep trouble. This match is in Murray's section of the draw. It would of course be a massive boost for the Scot if Del Potro was to be sent crashing out here. Although you can't take anything for granted with the draw - he has to navigate Ricardas Berankis.
3.59amThere must be something in the air at Melbourne Park today. With Azarenka being pushed hard and Del Potro in a spot of bother, Murray will need no further warning to stay on his toes. I'm sure Mr Lendl is right in his ear in the locker room.
Chardy 6-3 6-3 0-1* Del PotroBREAK! Chardy fluffs his lines with a backhand volley at the net. That gives Delpo two break points, and a double fault puts the bow on top of that game for the Argentine. Maybe that's the catalyst for a comeback. We'll see...
Chardy 6-3 6-3 *1-1 Del PotroBREAK! Chardy breaks right back. Delpo just doesn't look himself out on Hisense. He double faults at a the crucial moment, just as the Frenchman did in the game previously.
Chardy 6-3 6-3 2-1* Del PotroChardy holds to stay on serve in the third and pivotal set. But now, we're going back over to Rod Laver for Andy Murray's clash with Ricardas Berankis.
4.23amThe spin Murray can generate on his slices is absurd. He's taken absolutely no time to settle here and looks in cruise control, even at this early stage.
Murray *3-1 BerankisThe Lithuanian gets his first game on the board, but had to work for that last point despite dictating it. Murray's defence is another aspect of his game that's become a major plus point. But Berankis got the job done.
4.25amBrilliant double handed backhand down the line from Berankis. Just a snapshot of the ability he has.
4.26amBerankis now takes full advantage of Murray's second serve to move 15-30 ahead.
4.26amMurray fails with a drop shot and must face two break points now.
4.27amIt was there for Berankis! His return forced Murray well wide, giving him a lot of court to aim at, but he fired wide.
4.49amMurray produces another big serve to fight off break point.
4.50amA 129mph serve brings up set point. That's as fast as Serena's serve earlier. So credit to Serena.
Murray 6-3 BerankisSET! Well he takes the set, but there are definite warning signs. Berankis has grown in confidence and is producing some fine shots. He'll have to be alert in this second set, he doesn't want to go four... or five... or lose...
5.06amTsonga and Kavcic are underway on Margaret Court.
5.08am"Come on! Do something" Murray shouts to himself. He needs to step it up here, because this is not the kind of performance he'd have hoped for. 30-30.
Murray 6-3 2-2* BerankisMurray holds. His serve is working well for him, and has got him out of a few sticky situations. The errors are prevalent in his game at the moment.
5.11amSuper point. Berankis brings him into the net with a good drop shot, but Murray is as quick as anyone on tour and reaches it, clipping a lovely backhand wide. However, Berankis is positioned perfectly and clips into the open court.
Murray 6-3 *2-3 BerankisMurray misses with a forehand down the line and smashes his racquet head on the plexicushion. Things aren't quite going his way at the moment, despite him leading by a set.
5.18amAnother big serve at a crucial moment from Murray. He needs more though. Deuce.
5.19amGreat return of serve from the Lithuanian. He stepped up and took it early. Murray stretched for it but was never getting there.
Murray 6-3 2-4* BerankisBREAK! Berankis deservedly breaks. He had to take at least one of the chances, by the law of averages. The Lithuanian is the man on top in this set - by score and by performance.
5.20amA few jitters on his own serve now, though. 0-30.
5.21amThree break points for Murray. A serve down the T saves one.
Murray 6-3 *3-4 BerankisBREAK! Well, that's what separates the good from the bad, I suppose. Murray didn't particularly do much in that last game, bar the final point. Berankis came into the net, and Murray executed a gorgeous lob. The Lithuanian tried a hotdog shot, but he's no Rafa Nadal...
5.26amA bit of luck for Berankis, as the net cord takes all the power off the ball and drops it on Murray's side of the net. 30-30.
5.26amMurray drags a forehand well wide of the mark. He's hitting the ball better now though. Deuce.
Murray 6-3 6-4 4-2* BerankisMurray's serve keeps him in front. If nothing else, he can be pleased with that today. Everything else has been a bit of a struggle at times, but he's battling through it. Let's not underestimate Berankis either, he's a tricky opponent. Not been easy to play against.
Murray 6-3 6-4 *4-3 BerankisSwift hold of serve from Berankis. Murray can put himself within a game of victory if he does the job with the ball in his hand now.
6.33amWell the ending of that match coincides perfectly with the end of the match between Del Potro and Chardy on Hisense. It's perfect, because that means we can get all of Robson's match against Sloane Stephens. Woohoo.
6.34amThe players are having their pre-match hit, so we're not long from the first serve. Where's your money going? I'm backing Robson.
6.40amRight, it's Stephens to serve first. Game on.
6.43amRobson did well to reach Stephens's mishit return, which dropped just over the net. The Brit whipped a vicious forehand into the American, who fired wide as a result.
6.44amBrilliant defensive play from Stephens. She chased down everything Robson threw at her to win the point. It's currently 30-30.
6.47amRobson saves break point with a good serve. Another one sees her take advantage, but Stephens's goes deep with a powerful forehand to bring it back to deuce.
6.48amRobson fluffs a forehand into the net. It was quite badly mistimed. She saves another break point with a huge forehand from the baseline.
Stephens *2-0 RobsonBREAK! Stephens makes the breakthrough at the third attempt. Robson was on the back foot in the rally and was clinging on. She eventually put too much into a forehand to cede the early ground.
6.52amBOOM! Monstrous return from Robson, who was all over Stephens's second serve like a rash. She pumped a huge forehand down the line to get to 30-30.
Stephens 3-0* RobsonStephens replies in kind with two easy points to consolidate the break. She's in front early in this match!
6.55amStephens rattles away another forehand in the opening point. Robson didn't even move for it. The Brit looks tight as she strays wide with an overhead smash. Perhaps the arm injury is taking its toll slightly. She faces three break points.
Stephens *4-0 RobsonBREAK! This set is getting away from the 18-year-old now. It was a strange point, with both players looping the ball onto the baseline. However, the American dispatched another forehand cross court to get the double break.
6.58amThat's more like it! She got both hands on that raking forehand, putting it right in the corner, giving Stephens no chance. 15-15.
Stephens 4-1* RobsonBREAK! Robson gets a break back. She was far more proactive in that game, and cut down on the errors that have plagued her early in this set. If she can hold now then she's back within touching distance.
7.01amRobson has the trainer on court working on her arm.
7.02amThe doctor is out there too and it looks like she's having some painkillers. A medical timeout is called.
7.05amStephens has definitely made the brighter start, of that there can be no doubt. The signs from Robson were positive in the last game, as she got one of the breaks back. There's a long way to go in this set, unless Robson's injury becomes too much for her. I doubt that it will, but it could be enough to put her off her game.
7.08amA long rally ends with Stephens finding the net. Robson more than held her own. Her serve looks to be working for her so far. The American begins to make a few mistakes, but Robson serves another double fault. 40-30.
Stephens *4-2 RobsonRobson was in control of that point, but didn't take her chance to come in. In the end, Stephens makes the error and it's a crucial hold for Robson.
7.12amRobson has arrived in this contest now. She's getting so much power into her ground strokes. She gets 0-30 up, but then a long rally ends with her finding the net. Stephens was patient, although she didn't look to force it at any issue. Robson was doing all the probing. 30-30.
7.13amThe umpire overrules the line judge to give Stephens the chance to close out this service game at 40-30.
7.13amAll the aggressive play is now coming from Robson. Deuce.
Stephens 4-3* RobsonBREAK! Robson gets back on serve and is well in the ascendancy now! Stephens looks a bit shell shocked, while the Brit is covering the ground well and putting plenty of venom into her strokes.
7.18amRobson edges ahead as Stephens fires into the net after the pair exchange a few shots. Robson then follows her in to level it up. The unforced error count is gradually creeping up from Stephens though. 40-15.
7.20amRobson is putting everything into her shots, but when the balance is slightly off that means it goes awry. When she gets it right, Stephens is struggling to cope. 30-15.
7.22amRobson is also finding the net with a bit too much regularity. A big return from the backhand side has Stephens scrambling to ill effect. A double fault then brings up deuce. The American is wobbling.
Stephens 5-4* RobsonStephens holds with an ace at just the right time. She pumps her fist and lets out a little scream. She knows that Robson is on the warpath.
7.27amRobson's serving brilliantly. Her footwork is rapid as she runs around Stephens's return to dispatch a forehand. Stephens shows now signs of giving in easily, however, as she replies in kind with one of her own. 30-30.
7.29amRobson fights off set point with more aggressive play.
7.34amThis is a topsy-turvy game, with both players having chances to win it, which for Stephens would mean the first set. It's become a marathon game. Deuce.
Stephens *5-5 RobsonA dipping forehand from Robson hits the line and Stephens mistimes her shot, firing into the net. Robson holds crucially.
7.38amRobson gave up on the first point, but there was nothing she could do about Stephens's deep forehand to bring up 30-0. Robson produced another fizzing backhand as the American served for the game, before finding a forehand winner to make Stephens slightly twitchy. 40-30.
Stephens 6-5* RobsonRobson looks tentative coming forward and volleys into the net. Stephens holds. The Brit needs to do likewise to force a first-set tie break.
7.39amApologies, that score reads wrong. Another manual refresh will see it corrected.
7.41amStephens looks just as worried when coming into the net. Her approach wasn't all that good either. Robson turns the game around to lead 30-15.
7.43amStephens works the ball nicely around the court, but again her net play left something to be desired. Robson had half a chance to pass, but couldn't quite make it. 30-30.
7.43amStephens comes out on top after a long rally and brings up a third set point.
Stephens 7-5 RobsonSET! Robson goes too long with a looping forehand and the American takes the first set! This one is far from over though, as Robson only woke up at 4-0 down.
7.49amRobson unloads with a couple of deep shots that tease the baseline. Stephens looked like she was about to hold, but an unsuccessful challenge sees us at deuce.
Stephens 7-5 1-0* RobsonThese two are exchanging some mighty blows. Stephens eventually wins through after a couple of deuces.
Stephens 7-5 *1-1 RobsonStephens forces deuce but Robson sends a couple of tasty forehands her way to get on the board in this second set.
7.57amGAME, SET AND MATCH! Wozniacki 6-4 6-3 Tsurenko
7.59amRobson did excellently to turn that point around, although she was allowed back into it rather. Robson got just enough racquet underneath the ball to loop it into the air, and Stephens failed to put the smash away. 40-30.
8.02amRight folks, I've enjoyed the time we've spent together but it's now come to an end. I leave you in the capable hands of Liam Power, who will be your eyes and ears for the rest of this match, as well as Roger Federer's encounter with Bernard Tomic. Thanks for joining me, and I'll be sure to see you all soon... on here. Liam...
8.04amGood morning tennis fans. I join you with Robson struggling on serve in the fourth game of the second set.
8.06amBREAK POINT! Stephens keeps up the pressure and forces a second break point.
8.07amRobson hangs on in there with a big forehand but quickly gives up another break point with a poor forehand up the line.
Stephens 7-5 3-1 RobsonBREAK! Laura makes an early decision to be aggressive at the net but this time it doesn't pay off. A big break for Stephens who is now three games away from securing the match.
8.10amStephens is back on serve and wins three quick points as a challenge goes her way. Robson needs to put pressure on serve to have a chance of getting back in the match.
Stephens 7-5 4-1* RobsonRobson wins a point but it only delays the inevitable as the American wraps up a comfortable hold with a passing forehand winner. Stephens now has a big advantage and Robson will need to repeat her heroics in the last round to survive.
8.13amThis game is must win now for the British teenager and she starts strongly. 30-15 Robson after a pair of powerful first serves.
Stephens 7-5 *4-2A clever crosscourt winner keeps Robson down by a single break and still in contention at 4-2 down in the second set.
8.16amStephens is back on serve and loses the first point, but quickly responds with a fierce backhand winner to level things up.
Stephens 7-5 5-2*In the end a routine hold for Stephens, who is now just a single game away from a place in the fourth round.
8.19amRobson is now serving to stay in the match and opens up with an lovely forehand pass.
8.21amA pair of unforced errors keeps the game interesting at 30-30. Big pressure now on the Robson serve.
8.22amSome brave defending at the baseline earn Robson an important point under pressure. 40-30.
8.23amStephens steps inside and thunders a forehand down the line to bring the game to deuce.
Stephens 7-5 *5-3Robson survives on serve under intense pressure. Stephens will now serve for the match.
8.25amAn important call from the line judge puts Robson 15-30 ahead. Signs of nerves from the American on serve.
8.26amA double fault from Stephens hands the Brit two break points at a crucial time.
8.27amA superb rally but Robson fails to seize an advantage with a poor drop shot and Stephens recovers to earn a match point.
8.28amStephens looks to have the point sewn up but with the court gaping she mistimes a volley at the net. Robson lives to fight another day.
Stephens 7-5 6-3GAME SET AND MATCH! Robson sprays a forehand wide at match point and Stephens ends the British challenge in the women's singles.
8.31amA gutsy effort from Robson to make a match of that after going 4-0 down in the first set. Ultimately Stephens proved too strong and capitalised on a string on errors at key times from the British youngster.
8.33amLet's head over to the big match of the night in the men's draw and catch up with Roger Federer against Bernard Tomic.
Federer 5-3 Tomic*Federer broke serve in the opening game to hold an advantage on Rod Laver. Tomic has the home crowd behind him but will need to serve to hang on in the first set.
8.37amTomic has had a big build up from a passionate Australian press but is up against one of the greatest players ever to play the game today. The pair are currently locked at deuce as Federer tries to win the first set with a second break.
8.38amTwo volleys at the net keep Tomic alive by the skin of his teeth.
Federer *5-4 TomicTomic shows nice variety to save three set points and force Federer to serve out this opening set.
8.43amFederer smashes a 127mph serve down the middle to quickly establish an advantage in this vital game.
8.44amA rare double fault gives Tomic half a chance in this game and brings him back to 30-30.
Federer 6-4* TomicSET! Federer recovers and closes out the first set in efficient fashion. An uphill task for Tomic to fight back from here but the young Aussie does not seem overwhelmed.
8.47amImportant for Tomic to get on the board early in this second set if he wants to make a match of it. Easier said than done though against Federer.
Federer *6-4 0-1 TomicTomic comes up big at break point down, unleashing a forehand before matching it with a backhand winner to earn an important hold.
8.51amUPDATE! An update from the other match in the men's singles currently being played. Milos Raonic has just gone two sets up against Philipp Kohlschreiber. He leads 7-6(4) 6-3 after 97 minutes of play.
Federer 6-4 1-1* TomicA routine hold brings the match level early in the second set. Tomic failed to apply any pressure on his opponent's serve after winning the opening game.
8.55amMore pressure on serve for Tomic, who is break point down again in no time at all.
Federer *6-4 1-2 TomicImpressive fighting spirit from the home favourite in that game, showing nice touch at the net to keep the second set on serve.
9.02amTomic has a foothold in this second set and looks more confident on serve.
Federer 6-4 2-3* TomicA hold to love for the young Aussie has the crowd feeling more optimistic about this match.
Federer *6-4 3-3 TomicIn a flash Federer holds again, only allowing Tomic a single point on serve. The second set is still finely balanced at this stage.
9.07amEarly pressure on serve for Tomic as he slips 0-30 behind.
Federer *6-4 3-4A fine response from Tomic to rattle off four straight points and secure a vital hold. Still with serve in a second set which will go a long way to deciding if Federer has a fight on his hands today.
9.10amFederer peppers an ace down the line before forcing a pair of unforced errors for a 40-0 lead.
Federer 6-4 4-4 *TomicOnce again Tomic is unable to apply pressure to the Federer serve and the second set stays all square.
9.14amTomic misses two forehands and goes 15-40 down on serve. Federer with a chance to take the lead in the second set.
9.16amTwo huge serves gets the Aussie out of trouble and back to deuce. Still work to do here for the hold though.
9.18amA topsy-turvy game sees Tomic and Federer trade chances to win but end up back at deuce for the fourth time.
Federer *6-4 4-5 TomicChances missed for Federer as Tomic stays alive with a big hold. That makes it just one break point taken from a possible nine so far for the Swiss star.
9.22amGAME SET AND MATCH! Milos Raonic has completed a straight-sets win over Philipp Kohlschreiber in surprisingly easy fashion. He will now await the winner of our feature match between Federer and Tomic in the fourth round.
9.48amMore pressure for Tomic on serve early in the third at 0-30 down. The Aussie responds to level but still concedes a break point.
9.51amFederer squanders three break points, but quickly earns a fourth with a fine passing forehand.
Federer 6-4 7-6(5) 2-0 TomicA wonderful point finally gets the job done for Federer, who scrambles at the net after a long rally which saw both players show fine touch. Tomic is finally broken for the first time since the opening game of the match.
9.54amUpdate! A quick check on the match at the Hisense Arena, where Gilles Simon has taken the opening set against compatriot Gael Monfils by six games to four.
Federer 6-4 7-6(5) 3-0 TomicYet again Federer holds without any pressure and Tomic looks to have faded in this third set. He trails 3-0 and will need a miraculous recovery to keep this match alive.
9.54amTomic tries to battle back and put a game on the board in the third set, he leads 40-30.
10.11amTomic battled bravely and showed flashes of the talent which sees him held in such high regard by the Australian fans.
10.12amLet's hear from Federer now in the post-match interview.
10.13amFederer: "I think that was a great match, Bernard got the best out of me. He's a big guy with a lot of power and he'll be tough to beat in the future."
10.14amFederer continued: "I've played Milos three times before and every one of them was extremely close. That's gonna be a tough one but I'll get some rest and be ready."
10.15amAs Federer just eluded to he will play Milos Raonic in the fourth round on Monday. The Canadian beat Philipp Kohlschreiber in straight sets earlier today to set up that last 16 clash.
10.17amLet's head over to the Hisense Arena for our last match of the day in the men's singles. We are into the second set of all-French clash between Gael Monfils and Gilles Simon, with the latter leading 6-4 3-3.
10.20amMonfils is on the comeback trail in this one, having trailed by a break in the second set. He is back in touch at 4-3 down but has the chance to level things up on serve in the next game.
10.24amThe French pair have Hisense on their feet with a super exchange which included passing shots, volleys and a forehand winner from Monfils. He now leads 40-15 on serve.
Monfils 4-6 4-4 SimonMonfils holds serve to keep this second set competitive. You never quite know what to expect from the eccentric Frenchman other than entertainment in spades.
10.31amBack to Simon on serve and he duly responds with a pair of passing winners to take control of the game.
10.33amA long baseline battle earns Monfils a break-point chance, one he badly needs to take.
10.34amSimon fights back with an blistering backhand down the line and we are level at deuce.
Monfils 4-6 4-5 SimonMonfils looks tired as he gives up successive points with unforced errors to hand Simon the advantage.
10.38amSimon makes an aggressive start as he looks to earn the break that would win him the second set. Monfils swats two forehands aside to build a 30-0 lead on serve.
10.40amA punishing rally goes Simon's way to bring him level at 30-30 and two points away from the second set.
Monfils 4-6 4-6 SimonMonfils puts in a lazy effort on serve and is made to pay the price. Simon kept putting his opponent under pressure consistently and is rewarded with the breakthrough. He now has a two-set lead and looks in control of a bruising encounter.
10.45amSimon looks pretty relaxed in the interval, while Monfils receives treatment on his back. He has to dig deep now to try and find a way back into the match but is no stranger to five-set marathons.
10.49amSimon is on serve in the opening game of the third and immediately finds himself under pressure at 30-30.
11.32amSimon is struggling to get up and down the court and is making no secret of the fact he is in pain. Despite struggling he puts in a brave effort at the net to go 15-30 up on the Monfils serve.
11.35amMonfils is now in trouble with an injury of his own as he complains of pain in his right hand. Simon is in no mood for sympathy and has a point to break straight back.
Monfils 4-6 4-6 6-4 1-1* SimonAn instant reply from Simon, who forces Monfils to make a mistake at the net to draw level early in the fourth set. A war of attrition has both men struggling to survive in Melbourne.
11.42amOnce again the server is failing to make their advantage count in this match, with Simon the guilty party on this occasion. He trails 15-40 to a resolute Monfils.
Monfils *4-6 4-6 6-4 2-1 SimonMake that three successive breaks of serve in the fourth set as Monfils picks the right time to launch a huge serve just inside the line. He now leads 2-1 and looks on course to level the match.
11.45amMonfils is receiving treatment on court to his hand, with a bandage being applied to what looks like blisters on his palm.
Monfils *4-6 4-6 6-4 4-1 SimonJust a minute later Monfils makes it a double break with relaitve ease. Simon's knee problem leaves him looking increasingly unlikely to whether this storm and we heading rapidly towards a fifth-set decider.
11.52amDuring the change of ends Simon has apparently asked the umpire for a chocolate bar. He needs more than a sugar boost to recover in this match and looks to be slumping towards a frustrating defeat.
11.54amMonfils is wasting no time wrapping up this fourth set and is 4-0 up at 5-1.
11.55amI spoke too soon. Simon saves three set points on serve and you have to admire his fighting spirit to carry on swimming against the tide.
Monfils 4-6 4-6 6-4 6-1 SimonSET! At the fourth time of asking Monfils levels the match and now looks a hot favourite to go on and complete a comeback victory.
12.02pmSimon has eaten his chocolate, but will it make any difference? Monfils has rallied and unless he capitulates should complete the win in and with it gain a place in the fourth round.
12.04pmMonfils is first to serve in the decider and quickly has Simon in trouble with a 40-0 advantage.
12.07pmSimon keeps plugging away and lets out an anguished cry as he reaches for a forehand winner at the baseline. He leads 30-15 but for how much longer can he keep battling against his injured knee?
12.09pmThis time its the arm which causes Simon pain as he sends a slice into the net at deuce.
12.11pmSimon goes for broke at game point and extends his knee to get to a forehand on the line. He makes the shot but fails to win the rally before slipping to break point in the very next exchange.
12.15pmMonfils earns break point for a fourth time as he sends Simon all over the court with a variety of well-timed shots.
Monfils 4-6 4-6 6-4 6-1 2-0 SimonAll pain no gain for Simon in that game as a spirited effort amounts to nothing. He now looks destined for an agonising defeat to his compatriot in this match.
12.18pmQuite incredibly Simon finds the resolve to secure two break points in the next game as he chases down a shot at the net.
Monfils 4-6 4-6 6-4 6-1 2-1* SimonMonfils misses a forehand volley and Simon ends a run of seven successive losing games with an unlikely break. Plenty of life left in this match yet.
12.23pmSimon keeps hanging in there and forcing Monfils into mistakes. A great effort at the baseline puts him 40-30 ahead.
Monfils *4-6 4-6 6-4 6-1 2-2A terrific exchange at the net sees Simon show a deft touch to clip a volley out of reach and secure the hold. All square now in the fifth set.
12.26pmAfter seemingly being down and out Simon has summoned the strength to make a fight of this fifth set. An impressive return earns him another two break points.
12.38pmSimon gets the better of a marathon 47-shot rally to force deuce on the Monfils serve. He has definitely found a recovery from somewhere, maybe the chocolate bar did the trick.
12.41pmGael gets the crowd going as he responds to their chants at game point. After a quiet period the Hisense Arena has come to life for this one.
12.42pmAnother lengthy rally full of quality sees Simon leap at the net to claim the point and bring us back to deuce.
Monfils 4-6 4-6 6-4 6-1 4-3* SimonMonfils saves a pair of break points to claim a vital hold. He is clearly fired up with that one and acknowledges the crowd's support as he races back to his chair.
12.47pmBack on serve with Simon and he winning the first two points thanks to pair of unforced errors from Monfils.
12.50pmMonfils produces a minor miracle to reach a shot at the baseline, but it's all for nothing as Simon responds with an efficient winner to the other side of the court. An even game is now locked at deuce.
12.52pmSimon concedes a break point with a mistake of his own at a crucial time.
12.56pmMonfils misses two break-point chances in quick succession and for the fourth time in this game the pair are deadlocked at deuce.
Monfils *4-6 4-6 6-4 6-1 4-4Simon makes the most of a reprieve to hold on in the fifth set. We have now been playing for well over four hours and still we do not have a clear winner.
12.59pmMonfils serves his 10th double fault of match to gift Simon two break points.
1.00pmA huge effort from Monfils at the net forces deuce and saves what effectively serves as match point on serve.
Monfils 4-6 4-6 6-1 6-4 4-5* SimonBREAK! Simon looks in better shape than he has at any point in the match as he secures the break with a forehand drive. He will now serve for the match after looking in real trouble less than 30 minutes ago.
1.05pmMonfils is now receiving treatment for an injury to his forearm but must find a third break of serve in this set to stay alive in the Australian Open.
1.08pmAt 15-30 down Simon comes up huge with a thunderous forehand to draw level. Another long rally at 47 shots more than four hours into the match. Quite incredible.
1.09pmMonfils earns a break-point chance but sends a slice into the net just when his luck appears to be changing. Typically erratic play from the mercurial Frenchman.
Monfils *4-6 4-6 6-4 6-1 5-5BREAK! Monfils responds and cracks a forehand down the line to earn yet another break at a crucial time. All square once again in the decider.
1.12pmAnd instantly the server is under pressure once again, this time its Monfils who falls 0-30 behind thanks a pair of careless shots.
1.14pmSimon earns two break points but fails to convert after timing his dash to the net too late at 30-40.
Monfils 4-6 4-6 6-4 6-1 6-5* SimomMonfils recovers to hang on in the fifth and put all the pressure back on his opponent. This is easily the most dramatic match of the tournament so far.
1.19pmThe trainer has to administer treatment to both players, with Monfils grimacing through the pain barrier. Simon will now serve to stay in the match.
1.22pmSimon just chased down a high backhand to round off possibly the best point of match. Monfils had his back turned thinking the point was won but he was proven wrong by his spirited opponent and trails 40-15.
Monfils* 4-6 4-6 6-4 6-1 6-6 SimonSimon clinches the game and with no tie break in the decider, we will play on until someone secures a two-game advantage. Both men look exhausted.
1.25pmMonfils is under pressure straight away on serve, going 15-40 behind to hand Simon two break points.
1.29pmFor the second time Simon will serve for the match. He was pegged back within sight of the finishing line before, what does Monfils have left in the tank?
1.31pmSimon wins the first two points and is closing in on victory!
Monfils 4-6 4-6 6-4 6-1 6-8 SimonGAME SET AND MATCH! Monfils sends a forehand long and Simon has clinched an incredible victory against the odds. A superb effort from both players but it's Simon who goes through to face Andy Murray in the fourth round.
1.33pmSimon had to overcome a knee injury which looked to have him floored in the fourth set. Monfils will be desperately disappointed to lose that match, which was a joy to watch.
1.35pmAndy Murray will be delighted with the punishment Simon had to endure to win that match ahead of their last 16 clash on Monday.
1.37pmThat brings an end to a marathon day six of the Australian Open and a close to our live text commentary. Thanks for joining us, hope to see you tomorrow as the fourth round begins in Melbourne. Good afternoon!