The top-ranked player, wearing a sleeve on his right elbow, reaches the semifinals with a 7-6 (2), 6-4, 6-4 victory over the 10th-seeded American.

Sinner and Novak Djokovic earned their way into a star-studded men’s semifinal following their victories Wednesday.

Tennis pro Ben Shelton was competing against Jannik Sinner at Wimbledon on July 9, when the announcer drew attention to the round marks that are visible on his arms, calling them evidence of "cupping.