
Garbine Muguruza of Spain hits a return during the women's singles second round match against Duan Yingying of China at the 2017 U.S. Open in New York, the United States, Aug. 30, 2017. (Xinhua/Wang Ying)

Garbine Muguruza of Spain hits a return during the women's singles second round match against Duan Yingying of China at the 2017 U.S. Open in New York, the United States, Aug. 30, 2017. (Xinhua/Wang Ying)