Jannik Sinner has been treated for a painful right elbow by a trainer at Wimbledon during a medical timeout in the second set while trailing in his fourth-round match against Grigor Dimitrov

No. 1 Jannik Sinner advanced to the Wimbledon quarterfinals despite hurting his right elbow in a fall and dropping the first two sets Monday night, after his opponent, Grigor Dimitrov, had to retire with an injured pectoral muscle.