Roger Federer, of Switzerland, returns the ball to Robin Haase, of the Netherlands, during Rogers Cup tennis action in Montreal on Saturday, Aug. 12, 2017. (Paul Chiasson/The Canadian Press via AP)
Roger Federer, of Switzerland, returns the ball to Robin Haase, of the Netherlands, during Rogers Cup tennis action in Montreal on Saturday, Aug. 12, 2017. (Paul Chiasson/The Canadian Press via AP)