纳达尔退出伦敦奥运会（在线收听）

Spanish tennis star Rafael Nadal is out of this year’s Olympic Games. He declared his exit with an undisclosed injury on Thursday, leaving the London men’s tennis competition without one of its leading stars and robbing Spain of its flag bearer for the opening ceremony.

The Spaniard won the French Open for a record seventh time this year, but has struggled with left knee problems during the season. Right after Nadal grabbed his 11th Grand Slam title at Roland Garros, he lost to 100th-ranked Lukas Rosol in the second round at Wimbledon and has not played since. The 26-year-old boasts two Wimbledon titles, and claimed gold at the 2008 Beijing Olympics.