Kei Nishikori of Japan returns the ball against Stan Wawrinka of Switzerland during their semifinal match of men's singles at the 2016 Rogers Cup in Toronto, Canada, July 30, 2016. Kei Nishikori won 2-0. (Xinhua/Zou Zheng)
Kei Nishikori of Japan returns the ball against Stan Wawrinka of Switzerland during their semifinal match of men's singles at the 2016 Rogers Cup in Toronto, Canada, July 30, 2016. Kei Nishikori won 2-0. (Xinhua/Zou Zheng)