Getty Novak Djokovic cancels practice on Thursday ahead of semifinal match with Jannik Sinner. Ahead of his Wimbledon semifinal match with Jannik Sinner on Friday, Novak Djokovic has canceled his afternoon practice on Thursday. Prior to the start of Thursday’s semifinal meeting between Iga Światek and Belinda Bencic, doubles legend Pam Shriver provided an update on Djokovic during ESPN ‘s live broadcast. “Djokovic was scheduled 1-3 [p.m.] over at Aorangi with a couple of Wimbledon hitting