Wimbledon, Jannik Sinner and Grigor Dimitrov
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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.
Jannik Sinner defeats Ben Shelton in straight sets to advance to semifinals at Wimbledon.