Serena Williams  defeated Flavia Pennetta  to reach the US Open semi-final. Photograph:  Barton Silverman/The New York Times

Two-time defending champion Serena Williams, in her black and white leopard dress, started quietly before roaring past 11th seed Flavia Pennetta 6-3 6(...)

Serena Williams, of the United States, reacts after a point against Kaia Kanepi, of Estonia, during the fourth round of the 2014 U.S. Open tennis tournament, Monday, Sept. 1, 2014, in New York. (AP Photo/Charles Krupa)

Andy Murray recorded his best win since lifting the Wimbledon trophy last year to set up a blockbuster US Open quarter-final against Novak Djokovic. M(...)

Serena Williams of the United States returns a shot against Vania King of the United States during their women’s singles second round match on Day Four of the 2014 US Open. Photograph:  Elsa/Getty Images

Serena Williams won 10 games in a row to defeat countrywoman Vania King and reach the third round of the US Open. The world number one, who is bidding(...)

Serena Williams at full stretch during her second round defeat to  Garbine Muguruza of Spain. Photograph: EPA

A tournament of upsets got the biggest of the lot as defending champion Serena Williams sensationally lost to Spaniard Garbine Muguruza in the second (...)

 Roger Federer: has looked like his old self recently and now has a healthier back. Photograph: EPA/Daniel Murphy

Roger Federer leaves the BNP Paribas Open having reclaimed his champion’s aura, even after finishing as runner-up. After winni(...)

Eugenie Bouchard of Canada in action against Ana Ivanovic of Serbia at the Australian Open   in Melbourne. Photograph: Narenda Shrestha/EPA

Eugenie Bouchard has another cuddly toy and another grand slam scalp to add to her growing collection after knocking out Ana Ivanovic to reach the sem(...)

Ana Ivanovic of Serbia  on her way to an upset victory over world number one Serena Williams of the USA in round four of the Australian Open in Melbourne. Photograph: Joe Castro/EPA

Ana Ivanovic ‘broke a spell’ to post a magical win over Serena Williams in the fourth round of the Australian Open. Ivanovic had never won a set again(...)

Sara Errani   during a break in play. Photograph: Mike Segar/Reuters

Sara Errani admitted she felt so weighed down by pressure that she did not want to go on the court before losing to Flavia Pennetta in the second roun(...)

Maria Sharapova of Russia slips during her women’s singles tennis match against Michelle Larcher De Brito of Portugal at the Wimbledon Tennis Championships. The third seed was knocked out 6-3 6-4. Photograph: Stefan Wermuth/Reuters

Wimbledon’s grass courts bore their teeth yesterday and turned the normally quiet tournament infirmary into a running score on who was falling out of (...)

Monica Puig of Puerto Rico celebrates match point during her Ladies’ Singles first round match against Sara Errani of Italy on day one of  Wimbledon. Photograph: Dennis Grombkowski/Getty Image

Maria Sharapova battled through a tough Centre Court opener against fast-rising French player Kristina Mladenovic on the opening day of Wimbledon. Twe(...)