Dustin Poirier
He was expected to fight José Aldo at UFC 125 for the UFC Featherweight Championship but Aldo was forced to withdraw due to injury. Risking his #1 contender status, Grispi instead fought late replacement Dustin Poirier at the event and lost via unanimous decision. Grispi suffered a jaw injury in the fight which sidelined him for 5 months.