
Coco Vandeweghe of the United States returns to Agnieszka Radwanska of Poland during their first round of women's singles match at the 2017 Rogers Cup in Toronto, Canada, Aug. 8, 2017. Agnieszka Radwanska of Poland won 2-0. (Xinhua/Zou Zheng)

Coco Vandeweghe of the United States returns to Agnieszka Radwanska of Poland during their first round of women's singles match at the 2017 Rogers Cup in Toronto, Canada, Aug. 8, 2017. Agnieszka Radwanska of Poland won 2-0. (Xinhua/Zou Zheng)