MONTREAL, QC - AUGUST 08: Felix Auger-Aliassime of Canada hits a return against Karen Khachanov of Russia during day 7 of the Rogers Cup at IGA Stadium on August 8, 2019 in Montreal, Quebec, Canada. Karen Khachanov of Russia defeated Felix Auger-Aliassime of Canada 6-7, 7-5, 6-3. (Photo by Minas Panagiotakis/Getty Images)