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TORONTO, ON - AUGUST 11: Dusan Lajovic of Serbia hits a shot against Felix Auger-Aliassime of Canada during the second round on Day Three of the National Bank Open at Aviva Centre on August 11, 2021 in Toronto, Ontario, Canada. (Photo by Vaughn Ridley/Getty Images)

TORONTO, ON - AUGUST 11:  Dusan Lajovic of Serbia hits a shot against Felix Auger-Aliassime of Canada during the second round on Day Three of the National Bank Open at Aviva Centre on August 11, 2021 in Toronto, Ontario, Canada.  (Photo by Vaughn Ridley/Getty Images)