Caroline Wozniacki of Denmark returns a shot against Maria Sharapova of Russia during their semifinal match at the Indian Wells WTA tennis tournament in Indian Wells, California, March 18, 2011. (Xinhua/Reuters Photo)
Caroline Wozniacki of Denmark returns a shot against Maria Sharapova of Russia during their semifinal match at the Indian Wells WTA tennis tournament in Indian Wells, California, March 18, 2011. (Xinhua/Reuters Photo)