Angelique Kerber upsets world number one Serena Williams 6-4 3-6 6-4 to clinch the Australian Open and becomes the first German to win a grand slam title since her childhood idol Steffi Graf in 1999.

World number one and defending champion Serena Williams will face Maria Sharapova in the Australian Open quarter-final.

Novak Djokovic has denied "absurd" allegations in an Italian newspaper that he "wanted to lose" a match at the Paris Masters in 2007.

More players reveal match-fixing approaches on Tuesday as the Australian Open Grand Slam tournament came under close scrutiny following claims that corruption in tennis was widespread.

Novak Djokovic and Roger Federer are poised to become the first $100 million men in tennis in 2016, in a gripping sub-plot to the new Grand Slam season.

Barcelona star Leo Messi races against speedster Usain Bolt and American Pharoah, the first horse to win the Grand Slam of American horse racing, for the Sports Illustrated's annual prize.

Pakistan batsman Shoaib Malik said his sparkling double hundred against England was inspired by seeing his Indian wife Sania Mirza sweep to a series of tennis titles in 2015.

Martina Hingis and Sania Mirza claimed their second straight Grand Slam title in the US Open women's doubles.

Novak Djokovic clinched his third Grand Slam title of 2015 and 10th career major with a 6-4, 5-7, 6-4, 6-4 triumph over sentimental favorite Roger Federer in the US Open final.

New York police releases video footage of the mistaken arrest of retired professional tennis player James Blake.

"Fantastic Friday" at the US Open sees Serena Williams, Novak Djokovic and Roger Federer in starring roles.

Serena Williams defeats her sister Venus at the US Open to move within two victories of her first calendar Grand Slam.

Rafa Nadal ended a sub-par grand slam season on a heartbreaking note when he fell 3-6 4-6 6-4 6-3 6-4 in the third round of the U.S. Open to Fabio Fognini.

Serena Williams tries to reach the US Open fourth round while Novak Djokovic and Rafael Nadal also seek last-16 berths.

Former cricketer Shane Warne has written an open letter to tennis player Nick Kyrgios, telling his fellow Australian not to waste his talent.

Roger Federer kept his chances of an eighth title at Halle on track when he overpowered Latvian Ernests Gulbis 6-3, 7-5 on Wednesday to breeze into the quarterfinals.

Andy Murray makes a winning start to his grass-court season with a straight-sets win over qualifier Yen-Hsun Lu at Queen's Club.

Andy Murray will begin his grass-court campaign at Queen's Club on Tuesday, with Rafael Nadal and Stan Wawrinka also featuring in the tournament.

Novak Djokovic and Andy Murray meet for the 27th time on Friday with a French Open final place at stake and with history on their shoulders.

The two great rivals meet for the 44th time and for the fourth year in succession at Roland Garros.