While not officially announced yet by the promotion, Conor McGregor and Dustin Poirier both tweeted over the last day that they have agreed to a trilogy fight in the main event of UFC 264 on Saturday, July 10th.
It's expected that the event will be the centerpiece of International Fight Week and will be open to fans, likely in Las Vegas, Nevada.
In their first meeting at featherweight, McGregor knocked Poirier out by first round TKO at UFC 178 in 2014. The two rematched at lightweight in January of this year at UFC 257 with Poirier defeating McGregor by second round TKO. The trilogy fight will also be at lightweight.
While the vacant lightweight title won't be on the line, the show should be among the UFC's best pay-per-views for the year, revenue-wise. The January event did more than 1.6 million buys worldwide.
McGregor (22-5) will be looking to avoid consecutive losses for the first time in his career. This will be the first time the Irish superstar has fought twice in a calendar year since 2016. Poirier (27-6-0-1) will be looking for his third straight win, the eight win over his last nine fights, and a shot at the winner of the May Michael Chandler vs. Charles Oliveira bout for the vacant title.