B.J. Penn is one of just two men to win UFC titles in two different weight classes. He has the most wins in UFC lightweight history and owns victories over some of the biggest names to ever step into the Octagon.
Next week, Penn will be inducted into the UFC Hall of Fame before UFC 189 in Las Vegas. But the legendary fighter actually doesn't think the best moment of his illustrious career came inside an MMA cage.
"My greatest moment in my whole career is when I became the first non-Brazilian to win the Brazilian jiu-jitsu world championship," Penn told Ariel Helwani on Monday's edition of The MMA Hour.