Defending champion Roger Federer was stunned by Japan’s Kei Nishikori in the last 16 of the Mutua Madrid Open.

Caroline Wozniacki began her bid to win the New Haven Open for a fifth consecutive year with a comfortable victory over Ekaterina Makarova.

Novak Djokovic and Andy Murray won their opening matches at the Western & Southern Open in straight sets.

World number one Caroline Wozniacki believes parallels can be drawn between the mental approach required in tennis and golf having observed boyfriend Rory McIlroy at close quarters.

Kim Clijsters and Li Na, last year’s champion and runner-up respectively, eased into the third round of the Australian Open today, dropping just five games between them.

Kim Clijsters today shrugged off any concerns over a hip injury and declared herself “ready to go” as she prepares to defend her Australian Open crown.

World number one Caroline Wozniacki went out in the quarter-finals of the Sydney International today as she was beaten by Agnieszka Radwanska.

Samantha Stosur’s Australian Open preparations hit another hurdle today as the US Open champion was beaten in straight sets by Francesca Schiavone in the first round of the Sydney International.

Estonia’s Kaia Kanepi won her second career title as she stormed to a 6-2 6-1 win over Daniela Hantuchova in the Brisbane International final.

Kim Clijsters’ Australian Open defence might not be in as much doubt as first feared after the Belgian retired hurt in her Brisbane International semi-final yesterday due to a hip complaint.

Marina Erakovic and Barbora Zahlavova Strycova will meet in the final of the Bell Challenge in Quebec after winning their respective semi-finals on Saturday.

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.

Kim Clijsters suffered a worrying injury setback as the second seed abandoned her opening match at the Rogers Cup in Toronto last night.

Second seed Maria Sharapova battled to a 6-2 2-6 6-4 win over Daniela Hantuchova to book her place in the quarter-finals of the Bank of the West Classic - and a possible meeting with Serena Williams.

NOVAK DJOKOVIC will return to complete his third-round match at the French Open today with his six-month unbeaten run under serious threat from Juan Martin del Potro.

The shocks continued at the French Open this afternoon as world number one Caroline Wozniacki crashed out in the third round with a 6-1 6-3 defeat by Daniela Hantuchova.

Third seed Vera Zvonareva came back from match-point down to defeat ailing German Sabine Lisicki 4-6 7-5 7-5 in the second round of the French Open this evening.

French Open title contenders Samantha Stosur and Caroline Wozniacki reached the third round of the French Open in contrasting fashions at Roland Garros today.

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.

Daniela Hantuchova proved her recent title win in Pattaya was no fluke as she fought back from a break down in the final set to knock sixth seed Victoria Azarenka out of the Qatar Ladies Open in Doha.

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.

Reigning champion Kim Clijsters insisted her game was still a work in progress despite easing into the third round of the US Open with a 6-2 6-1 victory over Australian Sally Peers.

Shocks were conspicuous by their absence on the opening day of the US Open, with Venus Williams and defending champion Kim Clijsters among the seeds enjoying a comfortable passage into the second round at Flushing Meadows.

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.

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.

Svetlana Kuznetsova and Agnieszka Radwanska will meet in the Mercury Insurance Open final after winning their semi-final ties in San Diego last night.

Alex Bogdanovic has been overlooked for a wild-card entry into this year’s Wimbledon despite being Britain’s second-highest ranked player.

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.

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.

Serena Williams stepped up the defence of her Australian Open title today with a crushing straight sets third-round win over 32nd seed Carla Suarez Navarro.

Svetlana Kuznetsova survived a second-set scare to come through her first-round match at the Medibank International in Sydney against fellow Russian Alisa Kleybanova today.

Justine Henin continued her successful WTA Tour comeback with a straight-sets win against Sesil Karatantcheva at the Brisbane International today.

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.

Second seed Serena Williams bludgeoned her way into the US Open quarter-finals with a straight-sets destruction of Daniela Hantuchova.

Daniela Hantuchova battled from a set down to sink Melanie Oudin in the first round of the WTA LA Women’s Tennis Championships in Los Angeles yesterday.

Serena Williams produced some customary big hitting to wrap up a convincing 6-3 6-1 victory over Daniela Hantuchova and take her place in the last eight at Wimbledon.

ROGER FEDERER will face Robin Soderling in the fourth round at Wimbledon in a rematch of the recent French Open final.

SERENA WILLIAMS has warned her Wimbledon rivals there is more to come after demolishing Jarmila Groth on Court One yesterday.

Second seed Serena Williams has been dumped out of the Internazionali BNL d'Italia in her first game in Rome after suffering a 6-2 2-6 6-1 defeat to Patty Schnyder in the second round.

Former world number one Lleyton Hewitt fought back from a set down to reach the second round of the Miami Masters today with victory over Israel’s Dudi Sela.

Serena and Venus Williams won their eighth grand slam women’s doubles title with a 6-3 6-3 victory over Daniela Hantuchova and Ai Sugiyama at the Australian Open today.