
Roberto Bautista Agut of Spain returns the ball to Roger Federer of Switzerland during the quarterfinal match of men's singles at the 2017 Rogers Cup in Montreal, Canada, Aug. 11, 2017. Roger Federer won 2-0. (Xinhua/Andrew Soong)

Roberto Bautista Agut of Spain returns the ball to Roger Federer of Switzerland during the quarterfinal match of men's singles at the 2017 Rogers Cup in Montreal, Canada, Aug. 11, 2017. Roger Federer won 2-0. (Xinhua/Andrew Soong)