Novak Djokovic has canceled his Thursday afternoon practice at Wimbledon, the All England Club confirmed, one day after taking a scary fall in the final game of his win over No. 22 Flavio Cobolli (6-7,

Fast forward to his semifinal against Jannik Sinner, and something pretty unexpected happened on court: Sinner actually apologized to Novak about that fall when the two met at the net following match point. And of course, in true Djokovic fashion, he had the classiest response that’s got everyone talking about his sportsmanship.

Every other day at Wimbledon has brought an opportunity to compare the greatest player in men's tennis and one of his heirs.