Charles Oliveira has locked in his next opponent.

The 34-year-old Brazilian professional mixed martial artist (34-10) will fight Michael Chandler in a five-round co-main event at UFC 309 on November 16 at Madison Square Garden, UFC president Dana White told Barstool Sports on Friday night.

The UFC had not yet announced a main event for that card, but an announcement was expected soon.

Chandler (23-8) was originally slated to fight Conor McGregor.

The news does not necessarily mean Chandler will not fight McGregor (22-6), whom he coached against on “The Ultimate Fighter” in 2023. The two were supposed to fight in June, but McGregor was forced to pull out of the bout because of a toe injury. It was the first time McGregor had ever pulled out of a

McGregor has claimed on social media he wanted to fight in 2024, even posting video of him training recently, but the UFC has publicly stated he would not fight until 2025.

“Chandler saw that takedown getting stuffed and mauled [on social media] and officially dipped,” McGregor wrote on X on Friday night, adding that he was drug tested earlier in the day.

He went on to write: “Give me my f—ing date!”

Chandler, a former lightweight champion in Bellator MMA, has not fought since a submission loss to Dustin Poirier in 2022, mostly because he elected to wait on a fight with McGregor.

The bout at UFC 309 will be a rematch of a vacant championship bout that took place in 2021.

Chandler hurt Oliveira with punches in the opening round of the fight before suffering a TKO loss to Oliveira in the second round. Oliveira went on to defend the belt twice before losing it to current champion Islam Makhachev.