TORONTO, ON - AUGUST 10: Kei Nishikori (JPN) returns the ball during his National Bank Open tennis tournament first round game on August 10, 2021, at Aviva Centre in Toronto, ON, Canada. (Photo by Julian Avram/Icon Sportswire via Getty Images)
TORONTO, ON - AUGUST 10: Kei Nishikori (JPN) returns the ball during his National Bank Open tennis tournament first round game on August 10, 2021, at Aviva Centre in Toronto, ON, Canada. (Photo by Julian Avram/Icon Sportswire via Getty Images)