UFC 137: Penn vs. Diaz
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.
Cast
Details
| Status: | Released |
|---|---|
| Release Date: | 2011-10-29 |
| Production: | Zuffa |
