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