Novak Djokovic has been one of the most exciting tennis players to watch for 20 years. The athlete has won numerous titles, and at times, he’s been ranked the number one player in the world.

PARIS -- For 41 strokes, Novak Djokovic and Alexander Zverev went back and forth in a crucial rally during the fourth set of their French Open quarterfinal Wednesday. After smacking a forehand ...