 Diaz defeated former PRIDE Lightweight Champion Takanori Gomi on September 24, 2011, at UFC 135 via armbar submission in the first round.He earned "Submission of the Night" honors for his performance.Diaz defeated Donald Cerrone at UFC 141 via unanimous decision (30–27, 30–27, and 29–28) in a performance that earned both participants "Fight of the Night" honors.