London, July 8 -- World number one Jannik Sinner cancelled his practice session amid elbow injury fears ahead of his quarter-final clash against America's Ben Shelton on Wednesday at the ongoing Wimbledon.

According to Sky Sports, Sinner cancelled his practice session on Tuesday after sustaining a right elbow injury he suffered on Monday evening after slipping on the baseline in the first game of his fourth-round match against Grigor Dimitrov.

Sinner earned a spot in the quarter-finals despite trailing 6-3, 7-5, 2-2 against Bulgaria's 19th seed. Dimitrov sustained an apparent pectoral injury, which led to him retiring from the game and allowed the Italian to proceed into the final eight.

The 23-year-old, who himself needed a medical ti...