Watch UFC 137: Penn vs. Diaz (2011) Online!
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 Date: 2011-10-29
6.8/10
6.8/10
- Language: English
- Runtime: 171
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