UFC 137
Penn vs. Diaz
Date
Oct 29, 2011
Venue
Mandalay Bay Events Center
Ownership
Zuffa, LLC
Promotion
Ultimate Fighting Championship
Enclosure
Octagon
Location
Las Vegas, Nevada, United States
Referee
Herb Dean
Oct 29, 2011
Mandalay Bay Events Center
Zuffa, LLC
Ultimate Fighting Championship
Octagon
Las Vegas, Nevada, United States
Herb Dean