Concerns remain over Novak Djokovic's fitness after he cancels a scheduled practice session before his Wimbledon semi-final against Jannik Sinner.

Novak Djokovic became the second-oldest man to make the Wimbledon semifinal this week after defeating No. 22 Flavio Cobboli 6-7 (6), 6-2, 7-5, 6-4 as he attempts to win his 25th grand slam title. "A lot of numbers,

Djokovic's late career lives on impeccable serving and first-strike tennis. In Sinner, he faces the apex predator of that guise of the sport