It's tough to challenge Serena Williams' greatness, but that didn't stop one of tennis' biggest purses from trying his hand at it.
The 23-time Grand Slam champion is widely considered the greatest women's tennis player in the history of the game. Williams is still going strong at 39 years old, as evidenced by her No. 11 world ranking and a Grand Slam semifinal appearance as recently as this fall.
The former professional tennis player and hockey star, who has since come into a vast fortune through his business ventures, openly scorned Williams on Romanian television during a recent interview. He insisted that the tennis legend should stop competing professionally because "at this age and the weight she is now, she does not move as easily as she did 15 years ago."