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

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