![Nick Diaz, right, punches BJ Penn during UFC 137 at the Mandalay Events Center in Las Vegas, Nevada on Saturday, October 29, 2011. Photo by Francis Specker Stock Photo - Alamy Nick Diaz, right, punches BJ Penn during UFC 137 at the Mandalay Events Center in Las Vegas, Nevada on Saturday, October 29, 2011. Photo by Francis Specker Stock Photo - Alamy](https://c8.alamy.com/comp/HBFH25/nick-diaz-right-punches-bj-penn-during-ufc-137-at-the-mandalay-events-HBFH25.jpg)
Nick Diaz, right, punches BJ Penn during UFC 137 at the Mandalay Events Center in Las Vegas, Nevada on Saturday, October 29, 2011. Photo by Francis Specker Stock Photo - Alamy
![Photos: Nick Diaz defeats B.J. Penn at UFC 137 | Georgia Straight Vancouver's News & Entertainment Weekly Photos: Nick Diaz defeats B.J. Penn at UFC 137 | Georgia Straight Vancouver's News & Entertainment Weekly](https://www.straight.com/files/v3/styles/gs_standard/public/2012/10/BJPenn_NickDiaz_UFC_2011.jpg?itok=LbmEAmDI)
Photos: Nick Diaz defeats B.J. Penn at UFC 137 | Georgia Straight Vancouver's News & Entertainment Weekly
EA SPORTS UFC - 3) BJ Penn vs. Nick Diaz – UFC 137 It just wouldn't be a best-of staredown list without some Nick Diaz mean-mugging. At the weigh-ins ahead of UFC
![Nick Diaz, right, lands a right hand to the face of BJ Penn during the main event at UFC 137 at … | Las Vegas Review-Journal Nick Diaz, right, lands a right hand to the face of BJ Penn during the main event at UFC 137 at … | Las Vegas Review-Journal](https://www.reviewjournal.com/wp-content/uploads/2021/07/15370701_web1_ufc137.01-5.jpg)