UFC 131: "Dos Santos vs. Carwin" is now officially official for Saturday, June 11, 2011 at the Rogers Arena in Vancouver, British Columbia, Canada.
"The Engineer" is a late replacement for Ultimate Fighter (TUF) 13 coach Brock Lesnar, who was forced off the card thanks to a second flare-up of diverticulitis that required major surgery.
In addition, Kenny Florian makes his featherweight debut against Diego Nunes in a pivotal 145-pound match-up, while middleweight mashers Mark Munoz and Demian Maia will hit the mats earlier in the evening.
It's going to be a fun night of fights so don't miss it. And remember to check us out for all the pre, during and post-fight UFC 131 coverage you can handle.
Check out the Dos Santos vs. Carwin staredown video, as well as Florian vs. Nunes, after the jump: