B.J. Penn
Jay Dee "B.J." Penn III is an American former professional mixed martial artist and Brazilian Jiu-Jitsu practitioner. Penn competed in the Ultimate Fighting Championship and in K-1. Penn was the first American Gold medalist of the World Jiu-Jitsu Championship. In mixed martial arts, Penn has competed in the Featherweight, Lightweight, Welterweight, Middleweight, and Heavyweight/Openweight divisions.