An own goal from Luke Shaw saw Barcelona record a 1-0 win over Manchester United in the first leg of their Champions League quarter-final at Old Trafford on Wednesday night.
United arguably shaded the match against an off-colour Barca, but the Spanish champions did enough to secure a narrow advantage ahead of the return fixture at Camp Nou next week.
Read how it all unfolded in Sports Mole's minute-by-minute live commentary of the action below.
9.55pmSo there we have it. The referee brings the second period to a close with Barcelona running out 1-0 winners over United courtesy of that Shaw own goal. The two teams will do it all again in the Camp Nou next week! Thanks for joining Sports Mole for our live coverage once again!
90+4 minUNITED 0-1 BARCELONA
90+4 minSmalling fires over the Barca crossbar from inside the box.
90+3 minBARCA SUB! Alena replaces Busquets for the away side.
90+3 minPass, pass, pass from Barca. United cannot touch the ball.
90+2 minAlena might not get on here as Barca continue to keep the ball.
90+1 minWe are into the the first of three minutes of additional time here.
90 minBarca keep the ball as they prepare to make their third change here.
88 minLittle over two minutes of normal time remaining and United are on the front foot. Pereira has just played a little pass into Pogba before Shaw delivers, but Alba makes the clearance.
86 minSmalling (United) is booked for a foul on Luis Suarez.
85 minUNITED SUB! Pereira replaces Rashford for the home side.
84 minMcTominay finds Martial inside the Barca box, but Pique makes a huge challenge!
83 min... De Gea keeps out Messi's free kick.
82 minBarca have a free kick in a dangerous position as Pogba brings Semedo to the deck...
82 minBarca have just started to keep the ball as United's legs tire. A goal either way would be absolutely massive late on, but as it stands, Shaw's own goal is the difference here.
80 minPoor ball from Roberto after Barca had worked another dangerous position. You do get the feeling that something is going to happen late on. Still a solid 10 minutes of football left.
78 minApproaching the final 10 minutes of this first leg and Barca are still in the lead. United really need someone to come up with a big moment as a 1-1 would not be the worst result in the world, but a 0-1 would leave them with a mountain to climb in the second leg next week.
76 minLingard (United) is booked for a foul on Vidal.
75 minUNITED SUB! Lingard replaces Dalot for the home side.
74 minSuper passing move from Barca involving Messi, but Fred does well to come across and clear behind. The visitors have been poor, but are capable of putting something like that together.
72 minLingard could be United's second change of the match here.
71 minVidal (Barca) is booked for a late challenge on Fred.
71 min... Rashford's free kick is far too high.
70 minUnited have a free kick in a dangerous area as Pogba is felled by Vidal...
70 minUnited really, really need a goal. And they have just over 20 minutes to score one. Martial has just driven away from the Barca midfield before finding Young, but his cross was so poor.
68 minUNITED SUB! Martial replaces Lukaku for the home side.
67 minTer Stegen gathers a low cross from Lukaku and United will make their first change when the ball next goes out with Martial ready and waiting. Perhaps for Lukaku?
66 minReally good save from De Gea to keep out a low strike from Alba!
65 minBARCA SUBS! Vidal and Roberto replace Coutinho and Arthur.
65 minLuis Suarez hits the side-netting after breaking into the United box!
65 minLong spell of possession for Barca at the moment, meaning no changes!
64 minBarca are preparing two changes as Vidal and Semedo receive their instructions here.
62 min... Alba stoops to head Young's free kick clear.
62 minUnited have a free kick in a dangerous area as Lenglet brings Rashford to the ground...
61 minMessi fouls Pogba and the Argentine shows his frustration, which is an indication of Barca's struggles. The visitors still lead, though, as we enter the final 30 minutes of action here.
59 minFred strikes from outside the Barca box, but Pique makes the block. The Spanish champions just cannot keep the ball at the moment, though, and United are still on the attack here.
57 minYou do wonder whether this might be a match for Lingard or Martial, or potentially both.
55 minUnited are very much on the front foot at the moment as they continue to move the ball in the final third of the field. Barca just cannot get going, but the visitors still have the lead here.
53 minHuge chance for United as the ball drops for Rashford inside the Barca box, but the striker gets it all wrong! Really good spell for the home side at the moment here.
51 minYoung delivers United's first corner of the second period into the Barca box, but the away side clear their lines. Valverde's side then gain a throw following a poor pass from Fred.
49 minUnited really need to score tonight to stand a chance of progressing from the second leg. The problem, however, is that Barca could easily grab another one or two in the second period.
47 min... no changes from either side at the break, which is not too much of a surprise. However, I suspect that both managers will have alterations in mind as the second period develops.
46 minUnited resume the action here...
8.59pmBENCH WATCH! Jesse Lingard, Anthony Martial and Juan Mata are amongst those on the United bench tonight and we could see two or three of those in the second period. Barca, meanwhile, have options in the shape of Dembele, Sergi Roberto, Malcom and Arturo Vidal.
8.54pmSTATISTICS! Barca had 64% of the ball in the first period, but only managed two attempts on target. United, meanwhile, had five attempts, but are yet to test Ter Stegen between the sticks. Two yellow cards to report - Busquets for the visitors and Shaw for the hosts here.
8.49pmSo there we have it. The referee brings the first period to a close with Barca leading 1-0 courtesy of a Shaw own goal, but United have more than held their own at Old Trafford. It is delicately poised ahead of what is a huge second 45 minutes of Champions League football here.
45+3 minUNITED 0-1 BARCELONA
45+1 minLuis Suarez strikes wide of the United post from inside the box.
45+1 minGood stuff from United once again, but the final pass just goes astray and Barca can clear their lines as we enter first-half stoppage time, of which there will be two minutes.
44 minApart from the goal, United will be pretty pleased with their performance in this first period. Barca can turn it on at any moment, though, and 2-0 would be huge for the visitors here.
42 minThese are encouraging signs for United as the home side continue to cause problems with crosses into the box. Solskjaer would have liked to have seen more from Lukaku here.
40 minHuge chance for United as Dalot rises unmarked at the far post, but he gets it all wrong! The Portuguese attempted to head across goal when he should have gone himself!
39 minBusquets is fortunate to escape a second yellow for bringing Pogba to the ground. The Barca midfielder needs to be really careful here. Still 1-0 with 39 minutes on the clock at Old Trafford.
37 minWonderful save from De Gea to keep out a powerful strike from Coutinho!
35 minMessi does not fancy the aerial challenge with Lindelof this time, which is not too much of a surprise considering the state of his nose, which will swell up for the rest of the match. United are building a little bit of momentum at the moment as they continue to press high.
33 minPlay is back underway and Barca have possession in United's half of the field.
31 minMessi has picked up a bloody nose following a challenge with Chris Smalling, which has led to a fairly lengthy stoppage so the Argentine can receive treatment. He is not best pleased!
30 minUnited waste another promising position as Young delivers straight into the arms of Ter Stegen. McTominay then goes down inside the box, but the referee is not interested.
28 minLittle over 15 minutes of the first period remaining and not too much has happened in the last couple of minutes. Pogba picked up space in a decent area for United, but could not find Lukaku with a cross. You do feel that the home side need a goal back as soon as possible.
26 minLukaku finds space in a decent position on the left, but crosses straight into the arms of the Barca goalkeeper, who releases Semedo down the right and the away side start again.
24 minBarca are just so dangerous in the final third of the field. United are having their moments on the break, but there is so much space for the Spanish champions in the final third here.
22 minRashford misses the target from outside the Barca box.
22 minUnited have the chance to break through Young, but the Englishman's cross is really poor and Barca can resume from the back. The opening 22 minutes of this match have flown past.
20 minShaw (United) is booked for a tug on Messi.
20 minYoung's strike from distance misses the Barca goal.
19 minFred fires the resulting free kick straight into the away side's wall.
18 minBusquets (Barcelona) is booked for bringing Pogba to the deck.
16 minBarca want a second here as they continue to move the ball in the final third of the field. Nothing much from United since the goal as the away side continue to dominate the ball.
14 minGoal given. Barca have the lead as Luis Suarez heads a Messi cross into the back of the net. It seemed to come off Shaw, but the centre-forward will claim it, that is for sure.
13 minUNITED 0-1 BARCELONA (SUAREZ)
12 minLuis Suarez thinks that he has scored for Barca, but the flag is raised! The Uruguay international looked onside, and the goal is currently being checked by VAR.
10 minBarca continue to pass and probe as the clock ticks on at Old Trafford. Lots of space.
8 minIt appears that United are actually playing a back three, with Shaw alongside Lindelof and Smalling. Young and Dalot are then the two wing-backs. It seems to be working quite well as Rashford has just broken into a dangerous position only for Ter Stegen to make the clearance.
6 minNot too much of a surprise that Barca have had most of the ball early on, but United have started quite well with Rashford, Lukaku and Pogba all pushed high up the field here.
4 min... Rashford's effort is just wide of the post!
3 minSmalling does well again as a long ball is delivered towards Suarez. United then win a free kick down the other end as Busquets arrives late on McTominay. Good position here...
2 min... not too much of a surprise that Barca have taken control of the early possession here. Luis Suarez has already broken into a wide position, but Smalling makes a smart challenge.
0 minBarca kick things off at Old Trafford...
7.58pmAs for Barca, Ousmane Dembele is only fit enough for the bench, meaning that Philippe Coutinho again joins Lionel Messi and Luis Suarez in the final third. Elsewhere, Nelson Semedo and Arthur are preferred to Sergi Roberto and Arturo Vidal, while Gerard Pique faces his former club.
7.57pmNemanja Matic and Ander Herrera both miss out for United tonight, meaning that there are spots in midfield for Scott McTominay and Fred. There is also a position in the XI for Diogo Dalot, who is expected to operate on the right of a front three. Marcus Rashford and Romelu Lukaku also start for the Red Devils, who need a big performance from Paul Pogba tonight.
7.56pmTEAMS!
MAN UNITED: De Gea; Young, Smalling, Lindelof, Shaw; Pogba, McTominay, Fred; Rashford, Lukaku, Dalot
BARCELONA: Ter Stegen; Semedo, Pique, Lenglet, Alba; Arthur, Busquets, Rakitic; Coutinho, L Suarez, Messi
7.55pmGood evening and welcome to Sports Mole's live commentary of the first leg of the Champions League quarter-final between Manchester United and Barcelona. Tonight will be the first meeting between these two teams since the 2011 Champions League final, when Barca landed the trophy courtesy of a 3-1 win. It should be a fascinating battle between these two European heavyweights. Be sure to stay tuned for live minute-by-minute coverage of the action!