Catherine Bellis of the United States reacts after defeating Dominika Cibulkova of Slovakia during their women’s singles first round match on Day Two of the 2014 US Open. Photograph: Streeter Lecka/Getty Images

Fifteen-year-old American wild card Cici Bellis stunned Australian Open finalist Dominika Cibulkova in the biggest upset of the US Open so far. Bellis(...)

Li Na: “In my mind I didn’t have any idea how to play the match.” Photograph: EPA

Li Na helped set an unwanted record by crashing out in the first round at Roland Garros yesterday. Second seed Li’s 7-5 3-6 6-1 loss to Kristina Mlade(...)

Caroline Wozniacki of Denmark returns to Yanina Wickmayer of Belgium during their first round match at the French Open in Roland Garros, Paris. Photograph:  Etienne Laurent/EPA

Caroline Wozniacki’s return to tennis and the public eye after her break-up with golfer Rory McIlroy ended in more pain on Tuesday when the 13th seed (...)

 Andy Murray in action against Marin Cilic in the final of the AEGON Championships at The Queen’s Club, London.  Photograph:  Jonathan Brady/PA Wire

Andy Murray will begin his Wimbledon campaign today as Murray mania returns to Britain.The Scot will launch his challenge for the title with a late-a(...)