Serena Williams Stomachs the Competition

Published July 18, 2011 7:50 AM PDT | Updated May 12, 2019 2:01 PM PDT

Wearing a mismatched black and pink bikini, tennis diva Serena Williams cooled her rock hard body in the waters off South Beach this weekend.

The buff 29-year-old brickhouse does not need a lifeguard.