Victoria Azarenka had some sympathy for Serena Williams after banishing memories of her own first-round struggles at the French Open by breezing into round three.

Top seed and defending champion Juan Martin Del Potro marched into the quarter-finals of the Estoril Open in Portugal today with a 6-1 6-0, 62-minute demolition of home hope Rui Machado.

Venus Williams took another huge step on her comeback as she knocked seventh seed Jelena Jankovic out of the Family Circle Cup in Charleston last night.

Former world number one Roger Federer overcame a scare to beat Canada's Milos Raonic 6/7 (4/7) 6-2 6-4 in the third round of the BNP Paribas Open in Indian Wells today.

Defending champion Novak Djokovic moved through to the fourth round of the BNP Paribas Open at Indian Wells last night with a 6-2 6-3 win over South African Kevin Anderson.

Petra Kvitova became the first reigning Wimbledon champion to lose in the first round of the US Open in the Open era last night.

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.

Fourth seed Victoria Azarenka looked in imperious form as she booked a place in the Wimbledon quarter-finals with victory over Nadia Petrova this afternoon.

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.

Defending women’s champion Francesca Schiavone wasted little time in reaching round two of this year’s French Open with a thumping 6-2 6-0 victory over American teenager Melanie Oudin.

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

Vera Zvonareva believes the experience she gained from last year’s grand slam final appearances came to the fore as she squeezed past Lucie Safarova at the Australian Open today.

Kim Clijsters, the US Open champion, made short work of Romania’s Alexandra Dulgheru in the first round of the Sydney International tournament at the Sydney Olympic Park.

Andy Roddick made an impressive start to his 2011 season today with a straight-sets defeat of Australian Marinko Matosevic at the Brisbane International.

Japanese veteran Kimiko Date Krumm upset 12th seed Maria Sharapova in three sets in the first round of the Pan Pacific Open in Tokyo today.

Top seed Nadia Petrova moved into the second round of the Korea Open with a comfortable 6-3 6-2 victory over Jarmila Groth of Australia in Seoul.

A rain dance from Novak Djokovic had the desired effect as his US Open final with Rafael Nadal was delayed until today.

The US Open final between Rafael Nadal and Novak Djokovic has been delayed until tomorrow due to persistent rain at Flushing Meadows.

The withdrawal of Flavia Pennetta allowed US Open top seed Caroline Wozniacki to reach the last four of the Pilot Pen Tennis without playing in New Haven, Connecticut.

Eighth seed Nadia Petrova overcame a poor showing in the first set to book her place in the second round of the Pilot Pen Tennis tournament in New Haven.

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.

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.

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.

Jelena Jankovic was blasted off court by Samantha Stosur today before claiming her opponent had played like a man.

Francesca Schiavone today became the first Italian woman through to a grand slam final after a tearful Elena Dementieva dramatically quit their French Open semi-final.

Francesca Schiavone today produced one of the most complete performances of this year's French Open to stun Caroline Wozniacki and become the first woman into the semi-finals.

An inspired Nadia Petrova today claimed the biggest scalp of this year’s French Open after beating Venus Williams for the first time in her career.

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.

Venus Williams reached the third round of the French Open for the ninth successive year today, but found herself answering more questions about her outfit than her performance.

Top seed Elena Dementieva fought back from a set down to claim the title at the Open GDF Suez in Paris with a hard-fought 6-7 (5-7) 6-1 6-4 victory over Lucie Safarova.

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.

Justine Henin moved one step closer to another remarkable Belgian return when she advanced to the semi-finals of the Australian Open 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 continued her successful WTA Tour comeback with a straight-sets win against Sesil Karatantcheva at the Brisbane International today.

Former world number one Justine Henin has received a wild card to the Medibank International Sydney, tournament organisers announced today.

Second seed Serena Williams was knocked out of the China Open in the third round by Nadia Petrova amid a dramatic finish.

Dinara Safina looks set to lose her world number one ranking after a shock defeat by wild card Shuai Zhang in the second round of the China Open today.

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.