Overview: 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.
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Release: Oct 29, 2011Runtime: 171 minutesQuality: HDIMDb: 6.80 / 10 by 5 usersPopularity: 2Budget: $0Revenue: $0Language: English