10 Unforgettable Sports Meltdowns

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  • Shaquille O'Neal
  • Kobe Bryant
  • John McEnroe
  • Serena Williams
  • Bobby Knight
  • Zinedine Zidane
  • Mike Tyson
  • Latrell Sprewell
  • Mike Rice
  • Angel Matos

John McEnroe

Clearly dissatisfied with the official's call, U.S. tennis star John McEnroe famously shouted "You cannot be serious!" from the court during the 1981 Wimbledon tournament. (Photo: Tony Duffy/ Getty Images)