Novak Djokovic is more than a decade older than any other man in the Wimbledon semifinals. He says it motivates him to see if he can keep going toe-to-toe against the younger players at the top of tennis these days.

Novak Djokovic canceled his afternoon practice session at Wimbledon a day after the seven-time champion had a "nasty" fall moments before clinching his quarterfinal victory.

The Serbian legend has played excellent tennis up to this point in the tournament and has reacted like a true champion to all the difficulties – especially in the matches against Alex de Minaur and Flavio Cobolli – but he is aware that he will literally have to climb a mountain on Friday.