“I've always thought that being in the UFC is what the name suggests: Ultimate Fighting Championship. As time went on, people started learning to use the rules that suit them.”

American former mixed martial artist

Jay Dee "B.J." Penn III is an American former mixed martial artist and Brazilian jiu-jitsu practitioner. He is known for becoming a UFC champion in two weight classes and for his place in the sport's early modern history. Penn first made his name in Brazilian jiu-jitsu, where he became the first non-Brazilian to win the World Jiu-Jitsu Championship at black belt level. In mixed martial arts, he competed in the UFC and K-1 across several divisions, including featherweight, lightweight, welterweight, middleweight, and heavyweight or openweight. He also drew with Caol Uno in the UFC 41 Lightweight Tournament, later held the lightweight and welterweight titles, and was inducted into the Modern-era wing of the UFC Hall of Fame in 2015.