Andy Roddick produced the shock of the Sony Ericsson Open by knocking world number three Roger Federer out at the third-round stage with a 7-6 (7/4) 1-6 6-4 win.

Kim Clijsters was outplayed by her fellow Belgian Yanina Wickmayer who put an early end to the two-time former champion's campaign at the Sony Ericsson Open today.

Serena Williams was happy with her start to the Sony Ericsson Open in Key Biscayne, Miami, as she dropped just five games to Chinese opponent Zhang Shuai.

Rafael Nadal’s bout of cramp following his victory over David Nalbandian at the US Open was likely to have been caused by dehydration and the heat at Flushing Meadows, according to a medical expert.

Serena Williams' hopes of claiming a third consecutive title in the build-up to the US Open were shattered when she was forced to withdraw from the Western & Southern Open in Cincinnati with a toe injury.

The Williams sisters’ five-year grip on the Wimbledon title was ended today as both Venus and Serena crashed out in the fourth round.

Serena Williams will resume her title defence in the more grand surroundings of Court One today after the All England Club acquiesced to the champion’s plea to move away from the outer reaches of Wimbledon.

Last year’s Wimbledon runner-up Vera Zvonareva survived a first-round scare to defeat promising young American Alison Riske 6-0 3-6 6-3 this afternoon.

Kim Clijsters blamed a loss of confidence for her shock second-round defeat by Arantxa Rus at the French Open today.

Kim Clijsters declared herself a work in progress after coming through her first match at the French Open in five years in reasonably comfortable fashion against Anastasiya Yakimova today.

Caroline Wozniacki had to come from behind to beat Yanina Wickmayer and progress in the Family Circle Cup in Charleston.

Roger Federer and Novak Djokovic will meet in the semi-finals of the BNP Paribas Open after both secured straight-sets victories in their quarter-finals on Friday.

Kim Clijsters retired injured from her fourth-round match in the ATP & WTA BNP Paribas Open at Indian Wells last night.

Roger Federer won his first match in this year’s BNP Paribas Open at Indian Wells.

Caroline Wozniacki survived her first test of the tournament to underline her status as top seed at the US Open with a fourth-round victory over former champion Maria Sharapova.

Maria Sharapova will face the new hero of American tennis for the second year running at the US Open after booking her place in the third round at Flushing Meadows.

ROGER FEDERER wasted no time in powering to the third round at the US Open in Flushing Meadows last night.

Wimbledon finalist Vera Zvonareva safely moved into the third round of the US Open today with victory over Germany’s Sabine Lisicki.

Former world number one Dinara Safina claimed back-to-back wins for the first time since the Australian Open in January to reach the third round of the Rogers Cup in Montreal.

Former world number one Dinara Safina claimed just a third win in her past 11 matches after beating first-round opponent Andrea Petkovic at the Rogers Cup in Montreal.

Third seed Elena Dementieva was a surprise loser in the second round of the Cincinnati Open yesterday, going down in straight sets to fellow Russian Anastasia Pavlyuchenkova.

Maria Sharapova recovered from a poor second set to dump fellow Russian Svetlana Kuznetsova out of the Cincinnati Open in the first round on Tuesday night.

Former world number one Dinara Safina claimed a straight sets victory over Alona Bondarenko in the first round of the Mercury Insurance Open in San Diego last night.

JELENA JANKOVIC insisted her career is “back on track” after continuing her bid to progress beyond the last 16 at Wimbledon for the first time with a fine victory over Alona Bondarenko.

Justine Henin and Kim Clijsters each cantered to victory at Wimbledon today to set up the an eye-catching all-Belgian fourth-round clash.

Serena Williams today revealed she was suffering with a cold and sickness bug after a medical time-out helped her recover from a second-set malaise to reach the last 16 of the French Open.

Serena Williams today admitted she is taking great pleasure from silencing those who claimed she and sister Venus would never again hold the top two spots in the world rankings.

Justine Henin will not play singles in Belgium’s Fed Cup tie against Estonia this weekend after breaking the little finger on her left hand in training.

Venus Williams surged into the semi-finals of the Sony Ericsson Open in Miami, brushing aside Agnieszka Radwanska 6-3 6-1.

Marion Bartoli wasted little time in brushing aside top seed Svetlana Kuznetsova in the fourth round of the Sony Ericsson Open in Miami.

Australian Open finalist and former world number one Justine Henin has been granted a wildcard place in next month’s BNP Paribas Open at Indian Wells.

ANDY MURRAY believes he is in the form of his life after he booked his place in the final of the Australian Open with a four-set win over Marin Cilic.

Justine Henin is one step away from completing a fairytale return from retirement after she won through to the Australian Open final with a straight-sets win over Zheng Jie today.

Nadia Petrova claimed her second big-name scalp in as many rounds with an upset win over third seed Svetlana Kuznetsova at the Australian Open today.

REIGNING US Open champion Kim Clijsters had a day to forget as she crashed out of the Australian Open yesterday.

Justine Henin today fought back from a set down to keep her Australian Open title quest going just a month after returning from retirement.

ATP chairman Adam Helfant has confirmed the governing body will not be reinvestigating Andre Agassi’s positive drugs test in 1997 and cannot impose retrospective sanctions.

Third seed Yanina Wickmayer won the Generali Ladies tournament in Linz after seeing off unseeded Czech Petra Kvitova in the final.

Caroline Wozniacki brought fellow teenager Melanie Oudin's giant-killing run at the US Open to an end under the lights at Arthur Ashe Stadium last night.

American teenager Melanie Oudin continued her giant-killing run at the US Open when she knocked out a third Russian seed in succession Nadia Petrova at Flushing Meadows.

World number one Dinara Safina joined former champion Maria Sharapova as a third round casualty on a day of shocks at the US Open.

TOP seed Dinara Safina survived a huge scare to beat Australian world number 167 Olivia Rogowska 6-7 (5-7) 6-2 6-4 and reach the US Open second round.

Top seed Dinara Safina was dumped out of the WTA LA Women’s Tennis Championships by Zheng Jie last night.

Maria Sharapova breezed through to the second round of the WTA LA Women’s Tennis Championships in Los Angeles with a straight-sets victory over Jarmila Groth.