UFC 137

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


The event was originally expected to take place on October 15, 2011 at the Echo Arena Liverpool in Liverpool, England.[4] However, due to multiple scheduling issues with broadcast rights, the organization cancelled those plans. UFC 137 featured two preliminary fights live on Spike TV.

Dennis Siver was expected to face Sam Stout at this event, but Stout pulled out of the bout on August 29 and was replaced by Donald Cerrone.

Nick Diaz, who was originally scheduled to headline the card opposite Georges St-Pierre for the UFC Welterweight Championship, was pulled from the fight on September 7, due to failing to make media appearances. Carlos Condit was promoted from his fight with B.J. Penn to replace Diaz and face St-Pierre.

On September 8, B.J. Penn announced via Twitter that Dana White offered him a fight he "cannot refuse" and will still be fighting at UFC 137. Later that day, both Penn and White announced that the fight would be against Nick Diaz.

On October 1, it was revealed that Tim Credeur was forced out of his bout with Brad Tavares for unknown reasons. Promotional newcomer Dustin Jacoby stepped in to face Tavares. On October 21st, Tavares pulled out of the bout due to an injury and was replaced by undefeated newcomer Clifford Starks.

Georges St. Pierre was expected to defend his title against Carlos Condit on this card, but had to withdraw due to knee injury. Nick Diaz vs. B.J. Penn was promoted to the main event.

During the official UFC 137 weigh ins, Tyson Griffin failed to make the featherweight limit. Griffin came in 3 pounds over, was fined 25 percent of his earnings and the bout took place at a catchweight of 148lb.

  1. BJ Penn vs Nick Diaz
    BJ Penn
    16-8-2 Record 27-7-1
    5' 9" Height 6' 0"
    170lbs (77kg) Weight 170lbs (77kg)
    United States Reach United States
    Nick Diaz
    • Welterweight bout: Diaz defeated Penn via unanimous decision (29–28, 29–27, 29–28).
  2. Cheick Kongo vs Matt Mitrione
    Cheick Kongo
    27-6-2 Record 5-1-0
    6' 4" Height 6' 3"
    240lbs (109kg) Weight 265lbs (120kg)
    France   United States
    Matt Mitrione
    • Heavyweight bout: Kongo defeated Mitrione via unanimous decision (30–27, 30–28, 29–28).
  3. Mirko Cro Cop vs Roy Nelson
    Mirko Cro Cop
    27-10-2, 1NC Record 17-6-0
    6' 2" Height 6' 0"
    220lbs (100kg) Weight 263lbs (119kg)
    73 Reach
    Croatia   United States
    Roy Nelson
    • Heavyweight bout: Nelson defeated Cro Cop via TKO (punches) at 1:30 of round 3.
  4. Scott Jorgensen vs Jeff Curran
    Scott Jorgensen
    13-4-0 Record 35-14-1
    5' 4" Height 5' 6"
    135lbs (61kg) Weight 135lbs (61kg)
    United States   United States
    Jeff Curran
    • Bantamweight bout: Jorgensen defeated Curran via unanimous decision (29–28, 29–28, 30–27).
  5. Hatsu Hioki vs George Roop
    Hatsu Hioki
    25-4-2 Record 12-9-1
    5' 11" Height 6' 1"
    145lbs (65kg) Weight 145lbs (65kg)
    Japan   United States
    George Roop
    • Featherweight bout: Hioki defeated Roop via split decision (29–28, 28–29, 29–28).
  6. Preliminary Card (Televised)

  7. Dennis Siver vs Donald Cerrone
    Dennis Siver
    19-8-0 Record 17-3-0, 1NC
    5' 7" Height 6' 0"
    155lbs (70kg) Weight 155lbs (70kg)
    Germany   United States
    Donald Cerrone
    • Lightweight Bout: Cerrone defeated Siver via submission (rear naked choke) at 2:22 of round 1. This bout aired last on the PPV broadcast following the Penn vs. Diaz fight.
  8. Tyson Griffin vs Bart Palaszewski
    Tyson Griffin
    15-6-0 Record 34-13-0
    5' 6" Height 5' 9"
    145lbs (65kg) Weight 145lbs (65kg)
    United States   Poland
    Bart Palaszewski
    • Catchweight (148 lb) bout: Palaszewski defeated Griffin via KO (punches) at 2:45 of round 1.
  9. Facebook Preliminary Card

  10. Brandon Vera vs Eliot Marshall
    Brandon Vera
    12-5-0, 1NC Record 11-5-0
    6' 2" Height 6' 3"
    205lbs (93kg) Weight 205lbs (93kg)
    United States   United States
    Eliot Marshall
    • Light Heavyweight bout: Vera defeated Marshall via unanimous decision (29–28, 29–28, 29–28). This bout aired on the Spike broadcast following the Siver vs. Cerrone fight.
  11. Ramsey Nijem vs Dan Downes
    Ramsey Nijem
    6-2-0 Record 8-3-0
    5' 11" Height 6' 0"
    155lbs (70kg) Weight 155lbs (70kg)
    United States   United States
    Dan Downes
    • Lightweight bout: Nijem defeated Downes via unanimous decision (30–25, 30–26, 30–27).
  12. Chris Camozzi vs Francis Carmont
    Chris Camozzi
    15-5-0 Record 17-7-0
    6' 3" Height 6' 3"
    185lbs (84kg) Weight 185lbs (84kg)
    United States   France
    Francis Carmont
    • Middleweight bout: Carmont defeated Camozzi via unanimous decision (30–26, 30–27, 30–27).
  13. Dustin Jacoby vs Clifford Starks
    Dustin Jacoby
    6-1-0 Record 8-0-0
    6' 4" Height 6' 0"
    185lbs (84kg) Weight 185lbs (84kg)
    United States   United States
    Clifford Starks
    • Middleweight bout: Starks defeated Jacoby via unanimous decision (30–27, 30–27, 30–27).
  14. Fight of the Night: BJ Penn vs.Nick Diaz
    Knockout of the Night: Bart Palaszewski
    Submission of the Night: Donald Cerrone