25. Novak Djokovic
One of the best tennis players of the modern generation, Serbia’s Djokovic is also very petulant. A brilliant talent, he occasionally allows his emotions to burst forth. This results in dramatic consequences. In 2021, he mangled his tennis racket after smashing it three times off the court during the Australian Open. The frustrated star came from behind to defeat Germany’s Alex Zverev, but the story was about his antics during the game.
It’s embarrassing when grown adults have visible temper tantrums in public, but that’s literally what he did. He beat his racket off the ground until it was in bits. Then, he had the stones to tell the umpire it needed to be cleaned up. Meanwhile, the commentary wasn’t impressed and said that he should have done it himself as he caused the mess. The umpire also cited Djokovic for his unsportsmanlike conduct.