Serena Williams might be known as arguably the greatest female tennis player of all time, but this past weekend she traded in her tennis racket for the mud and obstacles of a Spartan Race.
Williams participated in the race with a team that included her husband, Alexis Ohanian. She posted photos from the event on her Instagram.
Williams had a baby last September, and has since been out of tennis action. Reports are that is planning to return to tennis in time for the French Open in May.