For three straight years Novak Djokovic, the Serbian star who owns the most Grand Slam titles in tennis history, has been denied a spot in Wimbledon's final.

Novak Djokovic suffered pain, both physical and emotional, in the Wimbledon semifinals on Friday. The emotional pain comes from another lost chance at his 25th career Grand Slam. Djokovic had made six straight Wimbledon finals until this year when he fell to Jannik Sinner in three sets.

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.