Both fighters revealed Thursday via social media they’d agreed to the fight. UFC president Dana White also confirmed the 155-pound bout to ESPN.
ESPN first reported the UFC’s interest in the rematch last month, but several hurdles needed to be cleared to make it happen.
White met with Alvarez in his hometown of Philadelphia last weekend to discuss the fighter’s career. Alvarez, 34, is on the last fight of his UFC contract and had expressed interest in extending the deal.
Alvarez (29-5) has not yet commented on his contractual status but did suggest the two sides had reached a resolution Thursday. Alvarez wrote on Twitter he would see Poirier in Calgary for the rematch.
Representatives for Poirier (23-5), however, told ESPN he had not yet agreed to the fight. After more negotiations, Poirier, 29, announced Thursday night on Twitter he’d also agreed to the fight.
“See you there!” wrote Poirier, including a tag to Alvarez’s account.
The two fought at UFC 211 one year ago in Dallas. It was shaping up to be one of the best fights of the year, until it was ruled a no contest in the second round after Alvarez landed a pair of accidental illegal knees.
Poirier, of Lafayette, Louisiana, is on a three-fight win streak. A former champion, Alvarez surrendered his title to Conor McGregor in a TKO loss in November 2016. He is 1-0 since.