UFC 138: Leben vs. Muñoz was a mixed martial arts event held by the Ultimate Fighting Championship on November 5, 2011 at LG Arena in Birmingham, United Kingdom. The event aired on the same day, via tape delay, on Spike TV in the United States and live on Sportsnet in Canada. The event was the second that the UFC has hosted in Birmingham, the first was UFC 89 back in 2008 also featuring Chris Leben in the main event. The main event was the first non-title five round fight in the history of the UFC.
Mark Muñoz
Chris Leben
Renan Barão
Brad Pickett
Thiago Alves
Papy Abedi
Anthony Perosh
Cyrille Diabate
Terry Etim
Eddie Faaloloto
John Maguire
Justin Edwards
Phil De Fries
Rob Broughton
Michihiro Omigawa
Jason Young
Che Mills
Chris Cope
Chris Cariaso
Vaughan Lee