Professional athletes don't always have to look as physically dominating as LeBron James in order to succeed. Take, for instance, New York Yankees pitcher CC Sabathia, or former world soccer superstar, Ronaldo. These guys might not have the sveltest figures around, but they were and are still able to perform at one of the highest levels in their sport, while being just as overpowering as LBJ. Sure, athletes are usually in better looking shape than most, but let's not be so quick to write off the guys who happen to have a few extra pounds on their waistline. And because it's the birthday of one of the NFL's favorite big men, former Chicago Bears defensive lineman, William "The Refrigerator" Perry, it's time to honor all of the heftiest heroes of organized athletics. So, without further ado, here are The Greatest Fat Athletes of All Time.