This weekend MMA legend Megumi Fujii decided to hang up her gloves for good, exiting the sport as one of the most revered female competitors in history. While Fujii never had a chance to ply her trade inside the Octagon, her retirement serves as a reminder all Mixed Martial Artists have to eventually move on from careers in the cage. In fact, chances are good a few first-ballot UFC Hall of Fame fighters will follow suit in the next fourteen months. (Photos by USA Today Sports Images)