Djokovic and Sinner's similarities make their matches especially compelling. For the coach who taught them both, it is no surprise.

Jannik Sinner overwhelmed a not-fully-fit Novak Djokovic in the Wimbledon semifinals to set up a rematch with Carlos Alcaraz of their epic French Open final four weeks ago.

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.