UFC第131期赛事《Dos Santos vs.Carwin》于北京时间2011年6月12日在加拿大哥伦比亚省温哥华市罗杰斯中心举行(Canada.British Columbia.Vancouver.Rogers Arena) 重量级-Heavyweight Junior dos Santos vs. Shane Carwin 羽量级 -Featherweight Kenny Florian vs. Diego Nunes 中量级-Middleweight Demian Maia vs. Mark Munoz 重量级-Heavyweight Jon Olav Einemo vs. Dave Herman 轻量级-Lightweight Donald Cerrone vs. Vagner Rocha 轻量级-Lightweight Sam Stout vs. Yves Edwards 中量级-Middleweight Jesse Bongfeldt vs. Chris Weidman