BJ Penn, nicknamed "The Prodigy", is a mixed martial artist fighting in the UFC's lightweight division. He is the champion of said division, and is considered the best of all the lightweights. He has also won the welterweight title, becoming the second fighter to win titles in two divisions (the other being Randy Couture). Top MMA site Sherdog ranks him as the #4 fighter in the world. He holds nottable wins over Matt Hughes, Joe Stevenson and Jens Pulver.