Top seed Jannik Sinner breathed a sigh of relief after reaching the Wimbledon quarter-finals on Monday but was left feeling sorry for Grigor Dimitrov who retired from their match with a pectoral injury after dominating throughout and going up 6-3 7-5 2-2.

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 has advanced to the Wimbledon quarterfinals despite hurting his right elbow on a fall and dropping the first two sets, because his opponent, Grigor Dimitrov, had to quit with an injured pectoral muscle.