Novak Djokovic prepares for "tougher" tests

Novak Djokovic
© PA Photos
Novak Djokovic says that an opponent should never be "underestimated" in the Australian Open.

Novak Djokovic believes that his "important" win over Santiago Giraldo has prepared him for more challenging contests in the Australian Open.

The world number one cruised to a straight-sets victory in the Serbian's second-round tie against Giraldo.

"I am trying to be physically fit and fresh for the upcoming rounds," said Djokovic. "The longer the tournament goes, the tougher it gets. Especially in the opening rounds you are trying to get the rhythm to play well in every match.

"You can't underestimate any opponent and Santiago is a tricky player. It was really important to win the first set."

The 24-year-old will face Frenchman Nicolas Mahut in the third round of the tournament in Melbourne.

Novak Djokovic
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1Scotland flag Andy Murray7,750
2Spain Rafael Nadal7,555
3Switzerland Roger Federer7,145
4Switzerland Stanislas Wawrinka5,780
5Serbia Novak Djokovic5,325
6Croatia Marin Cilic5,155
7Alexander Zverev4,470
8Austria Dominic Thiem4,030
9Japan Kei Nishikori3,285
10Canada Milos Raonic3,230
11Bulgaria Grigor Dimitrov3,070
12France Jo-Wilfried Tsonga2,770
13Belgium David Goffin2,560
14Spain Roberto Bautista Agut2,425
15Czech Republic Tomas Berdych2,390
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17Pablo Carreno Busta2,305
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19United States John Isner2,110
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