Turin, 8 July (LaPresse) – Jannik Sinner has cancelled his afternoon training session at Wimbledon. The Italian tennis player had booked a court at 5 p.m. (Italian time) ahead of tomorrow's quarter-final against Ben Shelton. The world number one, who underwent an MRI scan this morning, is struggling with an elbow problem that limited him yesterday during his match against Grigor Dimitrov.