Chris Weidman will face Ronaldo "Jacare" Souza at UFC 230 on Nov. 3 in the co-main event, the UFC announced officially on Monday afternoon.
The new fight pairing had been reported over the weekend, but nothing had yet been made official until Monday.
Weidman, from Baldwin, had been scheduled to face Luke Rockhold in a rematch against the man who took his middleweight title from him in 2015, but Rockhold was forced to pull out of the bout last Friday with a series of injuries.
Souza (25-6, 1 NC), a Brazilian Jiu-Jitsu black belt and multiple-time world champion in that sport, had been scheduled to face David Branch at UFC 230 before the switch. Souza last fought in May, losing a split decision to Kelvin Gastelum. Weidman (14-3) last fought in July of 2017 when he submitted Gastelum at NYCB Live's Nassau Coliseum. He has been out since with a hand injury.
Branch (21-4), from Brooklyn, now will face Jared Cannonier (10-4), who makes his debut at middleweight after competing at light heavyweight.
It was Rockhold (16-4) who took Weidman's middleweight title and undefeated record in December of 2015. The two were supposed to face other the following June, but Weidman was forced to withdraw from that fight with a neck injury.