
Karolina Pliskova of the Czech Republic returns the ball to Caroline Wozniacki of Denmark during their quarterfinal match of women's singles at the 2017 Rogers Cup in Toronto, Canada, Aug. 11, 2017. Karolina Pliskova lost 1-2. (Xinhua/Zou Zheng)

Karolina Pliskova of the Czech Republic returns the ball to Caroline Wozniacki of Denmark during their quarterfinal match of women's singles at the 2017 Rogers Cup in Toronto, Canada, Aug. 11, 2017. Karolina Pliskova lost 1-2. (Xinhua/Zou Zheng)