
Varvara Lepchenko of the United States hits a return during the women's singles first round match against Jelena Ostapenko of Latvia at the 2017 Rogers Cup in Toronto, Canada, Aug. 7, 2017. (Xinhua/Zou Zheng)

Varvara Lepchenko of the United States hits a return during the women's singles first round match against Jelena Ostapenko of Latvia at the 2017 Rogers Cup in Toronto, Canada, Aug. 7, 2017. (Xinhua/Zou Zheng)