UFC 137: Penn vs. Diaz was a mixed martial arts (MMA) pay-per-view event held by the Ultimate Fighting Championship on October 29, 2011, at Mandalay Bay Events Center in Las Vegas, Nevada. [3] The event was originally expected to take place on October 15, 2011, at the Echo Arena Liverpool in Liverpool, England. [4] .

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Scores were 29-28 twice and 29-27 for the former Strikeforce welterweight champion, who shook off Penn’s strong first round to dominate the next two frames. The bout earned Fight of the Night...

Fight summary of UFC 137: Penn vs. Diaz from Mandalay Bay in Las Vegas on October 29, 2011 on ESPN, including the main card and prelims.

Nick Diaz vs. BJ Penn UFC 137 A match between two of the best welterweights in the world doesn't get more exciting than this as Nick Diaz takes on BJ Penn. Featured

Oct 29, 2011 · UFC 137 - Penn vs. Diaz pits Nick Diaz vs B.J. The Prodigy Penn fight in Mandalay Bay Events Center, Las Vegas, Nevada, United States on Oct 29, 2011.

Oct 30, 2011 · UFC 137 took place Saturday, October 29, 2011 with 11 fights at Mandalay Bay Events Center in Las Vegas, Nevada. View fight card, video, results, predictions, and news.

Oct 29, 2011 · Sherdog.com will report from the Mandalay Bay Events Center in Las Vegas at 6:15 p.m. ET with play-by-play and live results of UFC 137, which is headlined by a welterweight contest between B.J....

Oct 30, 2011 · Penn vs. Diaz at UFC 137 on Tapology. View Penn vs. Diaz fight video, highlights, news, Twitter updates, and fight results.

Oct 21, 2011 · The UFC® returns to Vegas on October 29, as former two-division champion BJ Penn faces former Strikeforce® welterweight champ Nick Diaz.