Serena Williams is known for her risque fashions, but we've never seen her in an outfit like this!
The Wimbledon champion just tweeted a picture of herself in a red unitard that clung to her curves. Check out the photo below!
Along with the photo, Serena tweeted the message, "Hummm I think this onzie makes my butt look TOO big. Ugh #BigButProblems."
We love that Serena -- who has an awesome athletic body -- can poke fun at herself.
Check out our gallery of other hot tennis stars, below!
