Despite Serena Williams' greatness -- or perhaps because of her success -- the tennis star is constantly subjected to heckling and unfair criticism.
Finally, she's fighting back. In a new Glamour video, Williams addresses male critics of women's tennis by pelting a heckler with tennis balls. The loud-mouthed man is dressed toe-to-toe in padding, and Williams does not hold back.
This video should make narrow-minded male (and female) fans think twice about what they say about the women's sport. After all, who says Williams would hold back if critics were not padded?