LONDON, June 30, 2016 (Xinhua) -- Sloane Stephens of the United States returns a ball to Peng Shuai of China during a women's single first round match at the 2016 Wimbledon Championships in Wimbledon, southwest London, Britain on June 30, 2016. Sloane Stephens won the match 2-0. (Xinhua/Ye Pingfan)