Felix Auger-Aliassime, of Canada, reacts after defeating Alex de Minaur, of Australia, during the quarterfinal round of the U.S. Open tennis championships in New York.

Felix Auger-Aliassime, of Canada, reacts after defeating Alex de Minaur, of Australia, during the quarterfinal round of the U.S. Open tennis championships in New York.

Alex de Minaur, of Australia, returns a shot to Felix Auger-Aliassime, of Canada, during the quarterfinal round of the U.S. Open tennis championships in New York.

Felix Auger-Aliassime, of Canada, returns a shot to Alex de Minaur, of Australia, during the quarterfinal round of the U.S. Open tennis championships in New York.

Alex de Minaur, of Australia, returns a shot to Felix Auger-Aliassime, of Canada, during the quarterfinal round of the U.S. Open tennis championships in New York.

Felix Auger-Aliassime, of Canada, returns a shot to Alex de Minaur, of Australia, during the quarterfinal round of the U.S. Open tennis championships in New York.

Alex de Minaur, of Australia, returns a shot to Felix Auger-Aliassime, of Canada, during the quarterfinal round of the U.S. Open tennis championships in New York.

Felix Auger-Aliassime, of Canada, returns a shot to Alex de Minaur, of Australia, during the quarterfinal round of the U.S. Open tennis championships in New York.

Alex de Minaur, of Australia, reacts after a rally with Felix Auger-Aliassime, of Canada, during the quarterfinal round of the U.S. Open tennis championships in New York.

Alex de Minaur, of Australia, returns a shot to Felix Auger-Aliassime, of Canada, during the quarterfinal round of the U.S. Open tennis championships in New York.