TORONTO, ON - AUGUST 11: Karen Khachanov (RUS) returns the ball during his National Bank Open tennis tournament second round game on August 11, 2021, at Aviva Centre in Toronto, ON, Canada. (Photo by Julian Avram/Icon Sportswire via Getty Images)
TORONTO, ON - AUGUST 11: Karen Khachanov (RUS) returns the ball during his National Bank Open tennis tournament second round game on August 11, 2021, at Aviva Centre in Toronto, ON, Canada. (Photo by Julian Avram/Icon Sportswire via Getty Images)