STORY
UFC 137: Penn vs. Diaz was a mixed martial arts event held by the Ultimate Fighting Championship on October 29, 2011 at Mandalay Bay Events Center in Las Vegas, Nevada.
CAST & CREW
- Nick Diaz
- B.J. Penn
- Cheick Kongo
- Matt Mitrione
- Roy Nelson
Cast
INFORMATION
- Zuffa
Production Companies
Production Countries
LANGUAGES
- English
