Sharapova beaten by China's Li at Roland Garros semisRussian tennis star Maria Sharapova was defeated on Thursday by China's Li Na at the French Open semifinals, again missing her shot at a career Grand Slam.No. 7 seed Sharapova lost 6-4, 7-5 against sixth-seeded Li in a match that lasted 1 hour and 48 minutes.Sharapova returned to the French Open semis for the first time in three years by