Novak Djokovic beat Alexander Zverev in four sets to advance to the semifinals at the French Open on Wednesday, but it didn't come easy.
Djokovic had a two sets to one lead in the fourth, but faced break point up 3-2. What followed was an utterly incredible 41-shot rally in which two of the best men's tennis players in the world gave each other their best shot. Djokovic ultimately came away with the point, forcing deuce and saving his break.
