Jannik Sinner, of Italy, plays a shot to Andrey Rublev, of Russia, during their quarterfinal match at the National Bank Open tennis tournament in Montreal, Saturday, Aug. 10, 2024. (Graham Hughes/The Canadian Press via AP)
Andrey Rublev of Russia reacts during his quarter-final match against Jannik Sinner of Italy at the National Bank Open tennis tournament in Montreal, Saturday, August 10, 2024. (Graham Hughes/The Canadian Press via AP)
Andrey Rublev, of Russia, runs down the ball during his quarterfinal match against Jannik Sinner, of Italy, at the National Bank Open tennis tournament in Montreal, Saturday, Aug. 10, 2024. (Graham Hughes/The Canadian Press via AP)
Matteo Arnaldi, of Italy, plays a shot to Kei Nishikori, of Japan, during their quarterfinal match at the National Bank Open tennis tournament in Montreal, Saturday, Aug. 10, 2024. (Graham Hughes/The Canadian Press via AP)
Alexander Zverev, of Germany, plays a shot to Holger Rune, of Denmark, during their third-round match at the National Bank Open tennis tournament in Montreal, Saturday, Aug. 10, 2024. (Graham Hughes/The Canadian Press via AP)
Andrey Rublev, of Russia, runs the ball down during his quarter-final match against Jannik Sinner, of Italy, at the National Bank Open tennis tournament in Montreal, Saturday, Aug. 10, 2024. (Graham Hughes/The Canadian Press via AP)
Alexander Zverev, of Germany, salutes the crowd after defeating Holger Rune, of Denmark, in their third-round match at the National Bank Open tennis tournament in Montreal, Saturday, Aug. 10, 2024. (Graham Hughes/The Canadian Press via AP)
Andrey Rublev, of Russia, plays a shot to Jannik Sinner, of Italy, during their quarterfinal match at the National Bank Open tennis tournament in Montreal, Saturday, Aug. 10, 2024. (Graham Hughes/The Canadian Press via AP)
Kei Nishikori, of Japan, serves to Matteo Arnaldi, of Italy, during their quarterfinal match at the National Bank Open tennis tournament in Montreal, Saturday, Aug. 10, 2024. (Graham Hughes/The Canadian Press via AP)
Kei Nishikori, of Japan, serves to Matteo Arnaldi, of Italy, during their quarterfinal match at the National Bank Open tennis tournament in Montreal, Saturday, Aug. 10, 2024. (Graham Hughes/The Canadian Press via AP)
Matteo Arnaldi, of Italy, reacts after a shot during his quarterfinal match against Kei Nishikori, of Japan, at the National Bank Open tennis tournament in Montreal, Saturday, Aug. 10, 2024. (Graham Hughes/The Canadian Press via AP)