Serena Williams crashed a couple's beachside wedding in Miami on May 31. Credit: Courtesy Serena Williams

Not many weddings get surprise appearances from swimsuit-clad sports stars! Tennis pro Serena Williams popped in on one unsuspecting couple on Saturday, May 31 at the beach in Miami, Fla. 

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After posing for several fun shots with pal and fellow tennis player Caroline Wozniacki in her leopard-printed swimsuit, Williams happened upon a beachside wedding. Naturally, the happy couple invited the athlete to pose with them for a couple of pictures. 

"Wedding crasher!! Congrats!" Williams captioned one photo of her in the swimsuit posing with the newlyweds and their wedding party. 

Though the bride is glowing, it's Williams' muscular legs that steal the show in the one-piece suit. 

Williams made a recent appearance at another wedding—Kim Kardashian and Kanye West's Florence, Italy nuptials on May 24. 

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On May 31, Mother of the Bride Kris Jenner posted a photo with the tennis champ and pal LaLa Anthony from the couple's pre-wedding dinner at Versailles Palace, writing, "What an amazing night that was @serenawilliams @lala !!! Can't believe it was already a week ago!!! #PalaceofVersailles #Love #Family."