Serena Williams won the U.S. Open on Sunday and was supposed to make several TV appearances the next morning but was a no-show. It turns out the tennis star spent all night partying.

Williams, who won her 18th Grand Slam title, was scheduled to appear on the Today show, Good Morning America and Live With Kelly and Michael but backed out at the last minute. She was apparently out hitting the New York clubs all night with finals opponent Caroline Wozniacki and their close friends champagne and vodka. Williams' people apparently told the morning shows that she was too tired to make the rounds on just a few hours of sleep.

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