India, July 8 -- Italian star Jannik Sinner advanced to the Wimbledon quarterfinals on Monday after his fourth-round opponent Grigor Dimitrov retired due to a pectoral injury-despite the Bulgarian leading by two sets. However, Sinner himself raised concerns after suffering a right elbow injury earlier in the match.

During the opening stages, Sinner took a fall on the grass and landed awkwardly on his right arm. Although he sought medical attention, the discomfort persisted, especially while serving and hitting forehands.

"It was a quite unfortunate fall," Sinner said post-match. "I checked the videos a little bit, and it didn't seem like a tough one, but I still felt it quite a lot, especially on the serve and forehand. So let's see. To...