With Brock Lesnar out after surgery for diverticulitis, Shane Carwin was added to the UFC 131 main event. He'll face Junior Dos Santos (pictured) in a No. 1 contender bout for Cain Velasquez's UFC heavyweight championship.
Below is a look at the entire card for UFC 131.
On pay-per-view, 9 p.m. EDT
Junior Dos Santos vs. Shane Carwin
Kenny Florian vs. Diego Nunes
Jon Olav Einemo vs. Dave Herman
Demian Maia vs. Mark Munoz
Donald Cerrone vs. Vagner Rocha
Prelims on Spike, 8 p.m.
Sam Stout vs. Yves Edwards
Jesse Bongfeldt vs. Chris Weidman
Prelims on Facebook
Krzysztof Soszynski vs. Igor Pokrajac
Nick Ring vs. James Head
Dustin Poirier vs. Jason Young
Joey Beltran vs. Aaron Rosa
Michihiro Omigawa vs. Darren Elkins
* Some fights on Spike and Facebook may be moved, but the pay-per-view card is set.