LONDON—Jannik Sinner advanced to the Wimbledon quarterfinals despite hurting his right elbow in a fall and dropping the first two sets Monday night, because his opponent, Grigor Dimitrov, had to quit with an injured pectoral muscle.
The No. 1-seeded Sinner hadn’t dropped a set in the tournament until falling behind No. 19 Dimitrov 6-3, 7-5. But at 2-all in the third set, Dimitrov stopped playing.
