Western & Southern Open - Day 7 [Getty Images]

MASON, OH - AUGUST 19: Milos Raonic of Canada hits a return shot to Dominic Thiem of Austria during a quarterfinal match on Day 7 of the Western & Southern Open at the Lindner Family Tennis Center on August 19, 2016 in Mason, Ohio. (Photo by Joe Robbins/Getty Images)

Getty Images Sport Joe Robbins