In a video of the moment, it looked as though the 34-year-old Dimitrov injured a pectoral muscle on a volley. Almost immediately after the hit, he fell to the ground, clutching the right side of his chest in pain.

Grigor Dimitrov is hopeful to return for the US Open despite his untimely withdrawal from a promising Wimbledon match against Jannik Sinner. The Bulgarian tennis pro, plagued by injuries over the last year,