MONTREAL, ON - AUGUST 13: Kei Nishikori of Japan hits a return against David Goffin of Belgium during day four of the Rogers Cup at Uniprix Stadium on August 13, 2015 in Montreal, Quebec, Canada. Kei Nishikori defeated David Goffin 6-4, 6-4. (Photo by Minas Panagiotakis/Getty Images)
