Christopher Clarey The New York Times

Maria Sharapova, one of the biggest names in tennis, said she tested positive for meldonium at the Australian Open in January. It was placed on the banned list at the beginning of this year.

Angelique Kerber defeated Serena Williams on Saturday in the Australian Open final to win her maiden Grand Slam title.

Novak Djokovic is one victory away from finally having the edge over all three of his principal rivals. He has won nine of his last 10 matches against Rafael Nadal to take a 24-23 lead. He has won 10 of the last 11 against Murray to lead, 21-9.

Novak Djokovic, who won his second US Open title on Sunday, said he played mind games with himself to tackle the hostile crowd that was roaring for Roger Federer.

Novak Djokovic's 6-4, 5-7, 6-4, 6-4 victory gave him a second U.S. Open singles title and a 10th Grand Slam title, moving him into a tie with Bill Tilden for seventh place on the career list.

Serena Williams, who is now just two victories away from a Grand Slam, has shown nothing but resilience under mounting pressure throughout this tour de force of a season.

John Isner, the last American man remaining in the draw, came out with a right-minded, aggressive game plan and plenty of positive energy. But despite all of Isner's best efforts, he could not find a way to win a set against Roger Federer.

The bizarre accident happened when the cameraman strayed too close to a barefoot Bolt as he posed for photos following his gold medal run in the 200 metres in Beijing.

It is an against-the-odds development that this fourth-round family affair will happen at all, considering that Serena Williams was twice two points from defeat against Heather Watson on Friday before prevailing, 6-2, 4-6, 7-5.

For about 25 minutes, Sam Querrey, a powerful and pleasant-mannered Californian, was Roger Federer's opponent. But after Federer broke Querrey at 4-4 in the opening set, Querrey rapidly became Federer's canvas: a bold backhand brush stroke here, a dab of a half-volley winner there and most avant-garde of all, a lob hit between the legs.

Roger Federer, with his 34th birthday approaching, did another bravado impression of his dominant days at the All England Club to overwhelm Sam Querrey. Next on court, Rafael Nadal went down to another early-round defeat to a player with a ranking in triple digits.

In a sport where perfection is unattainable - eventually you will miss - the game's earliest practitioners must have felt compelled to utter an oath or two, perhaps on day one.

Serena Williams will be chasing a career slam at the Wimbledon.

Wimbledon in 2012 was Federer's 17th Grand Slam singles title. Since that victory, he has reached only one other major final, also at Wimbledon, where he lost to Novak Djokovic in five sets last year.

Serena Williams won her 20th Grand Slam title with a win at French Open.

Maria Sharapova, one of the biggest names in tennis, said she tested positive for meldonium at the Australian Open in January. It was placed on the banned list at the beginning of this year.

Angelique Kerber defeated Serena Williams on Saturday in the Australian Open final to win her maiden Grand Slam title.

Novak Djokovic is one victory away from finally having the edge over all three of his principal rivals. He has won nine of his last 10 matches against Rafael Nadal to take a 24-23 lead. He has won 10 of the last 11 against Murray to lead, 21-9.

Novak Djokovic, who won his second US Open title on Sunday, said he played mind games with himself to tackle the hostile crowd that was roaring for Roger Federer.

Novak Djokovic's 6-4, 5-7, 6-4, 6-4 victory gave him a second U.S. Open singles title and a 10th Grand Slam title, moving him into a tie with Bill Tilden for seventh place on the career list.

Serena Williams, who is now just two victories away from a Grand Slam, has shown nothing but resilience under mounting pressure throughout this tour de force of a season.

John Isner, the last American man remaining in the draw, came out with a right-minded, aggressive game plan and plenty of positive energy. But despite all of Isner's best efforts, he could not find a way to win a set against Roger Federer.

The bizarre accident happened when the cameraman strayed too close to a barefoot Bolt as he posed for photos following his gold medal run in the 200 metres in Beijing.

It is an against-the-odds development that this fourth-round family affair will happen at all, considering that Serena Williams was twice two points from defeat against Heather Watson on Friday before prevailing, 6-2, 4-6, 7-5.

For about 25 minutes, Sam Querrey, a powerful and pleasant-mannered Californian, was Roger Federer's opponent. But after Federer broke Querrey at 4-4 in the opening set, Querrey rapidly became Federer's canvas: a bold backhand brush stroke here, a dab of a half-volley winner there and most avant-garde of all, a lob hit between the legs.

Roger Federer, with his 34th birthday approaching, did another bravado impression of his dominant days at the All England Club to overwhelm Sam Querrey. Next on court, Rafael Nadal went down to another early-round defeat to a player with a ranking in triple digits.

In a sport where perfection is unattainable - eventually you will miss - the game's earliest practitioners must have felt compelled to utter an oath or two, perhaps on day one.

Serena Williams will be chasing a career slam at the Wimbledon.

Wimbledon in 2012 was Federer's 17th Grand Slam singles title. Since that victory, he has reached only one other major final, also at Wimbledon, where he lost to Novak Djokovic in five sets last year.

Serena Williams won her 20th Grand Slam title with a win at French Open.