Philipp Kohlschreiber

Novak Djokovic, chasing a 16th career major, will face Denis Kudla of the United States for a place in the last 32.

Novak Djokovic was severely tested before securing a 6-3, 4-6, 6-4 win over Philipp Kohlschreiber.

Roger Federer and Rafael Nadal edged closer to a blockbuster semi-final showdown at the ATP Indian Wells Masters.

Novak Djokovic was playing his first tournament since lifting a record seventh title in Melbourne, taking his tally of Grand Slam victories to 15.

Rafael Nadal returned to the top spot in the men's ATP world singles rankings, dethroning Roger Federer.

Roger Federer would surpass Andre Agassi, who held the top spot in 2003 aged 33 years and 131 days. It would be Federer's first time back at the summit since October 2012 having first claimed the top spot in February 2004.

Argentina 24th seed Del Potro claimed a heroic 1-6, 2-6, 6-1, 7-6 (7/1), 6-4 victory over the sixth-seeded Austrian on a rocking Grandstand court, describing it as night he would remember forever.

Wawrinka recorded his fifth victory over Kohlschreiber in as many meetings in a performance that left him cautiously encouraged about his prospects of making it past the quarter-finals in the California desert for the first time.

Roger Federer, who is returning from a back injury that ruled him out of the French Open, saw his preparations for Wimbledon unravel as Dominic Thiem battled through 3-6, 7-6 (9/7), 6-4

Rafael Nadal, a 14-time Grand Slam champion, is now just one win away from matching Argentine legend Guillermo Vilas's record of 49 clay-court titles.

Rafael Nadal defeated Fernando Verdasco, while Novak Djokovic beat Philipp Kohlschreiber to enter Indian Wells fourth round. In the women's singles, Serena Williams eased past Kateryna Bondarenko in the fourth round.

Stan Wawrinka saw off Germany's Philipp Kohlschreiber 7-5, 6-1 while Nick Kyrgios stunned third-seeded Tomas Berdych of the Czech Republic 6-4, 6-4 at Dubai Tennis Championships

Philipp Kohlschreiber stunned second seed Marin Cilic 3-6, 6-3, 6-4 on Friday to move into the semi-finals of the Rotterdam World Tennis

Seventh seed Kei Nishikori of Japan brushed aside Philipp Kohlschreiber in straight sets to make a winning start in the 2016 Australian Open.

Six-time champion Roger Federer overcame Philipp Kohlschreiber 6-4, 4-6, 6-4 and will face Belgium's David Goffin in quarters.

Novak Djokovic, chasing a 16th career major, will face Denis Kudla of the United States for a place in the last 32.

Novak Djokovic was severely tested before securing a 6-3, 4-6, 6-4 win over Philipp Kohlschreiber.

Roger Federer and Rafael Nadal edged closer to a blockbuster semi-final showdown at the ATP Indian Wells Masters.

Novak Djokovic was playing his first tournament since lifting a record seventh title in Melbourne, taking his tally of Grand Slam victories to 15.

Rafael Nadal returned to the top spot in the men's ATP world singles rankings, dethroning Roger Federer.

Roger Federer would surpass Andre Agassi, who held the top spot in 2003 aged 33 years and 131 days. It would be Federer's first time back at the summit since October 2012 having first claimed the top spot in February 2004.

Argentina 24th seed Del Potro claimed a heroic 1-6, 2-6, 6-1, 7-6 (7/1), 6-4 victory over the sixth-seeded Austrian on a rocking Grandstand court, describing it as night he would remember forever.

Wawrinka recorded his fifth victory over Kohlschreiber in as many meetings in a performance that left him cautiously encouraged about his prospects of making it past the quarter-finals in the California desert for the first time.

Roger Federer, who is returning from a back injury that ruled him out of the French Open, saw his preparations for Wimbledon unravel as Dominic Thiem battled through 3-6, 7-6 (9/7), 6-4

Rafael Nadal, a 14-time Grand Slam champion, is now just one win away from matching Argentine legend Guillermo Vilas's record of 49 clay-court titles.

Rafael Nadal defeated Fernando Verdasco, while Novak Djokovic beat Philipp Kohlschreiber to enter Indian Wells fourth round. In the women's singles, Serena Williams eased past Kateryna Bondarenko in the fourth round.

Stan Wawrinka saw off Germany's Philipp Kohlschreiber 7-5, 6-1 while Nick Kyrgios stunned third-seeded Tomas Berdych of the Czech Republic 6-4, 6-4 at Dubai Tennis Championships

Philipp Kohlschreiber stunned second seed Marin Cilic 3-6, 6-3, 6-4 on Friday to move into the semi-finals of the Rotterdam World Tennis

Seventh seed Kei Nishikori of Japan brushed aside Philipp Kohlschreiber in straight sets to make a winning start in the 2016 Australian Open.

Six-time champion Roger Federer overcame Philipp Kohlschreiber 6-4, 4-6, 6-4 and will face Belgium's David Goffin in quarters.