Rematch between Conor McGregor and Nate Diaz official for UFC 200

Let the mind games recommence.

The anticipated rematch between Conor McGregor and Nate Diaz is set to headline UFC 200.

The fight, which was first reported by MMA Fighting's Ariel Helwani on March 18, was made official during a UFC Tonight broadcast on Wednesday night. It will be contested at 170 pounds, as part of a milestone event on July 9 set to christen Las Vegas’ new T-Mobile Arena.

Earlier this month, Diaz submitted McGregor at UFC 196 via a second-round rear-naked choke. McGregor was originally slated to face Rafael dos Anjos for the lightweight title, but dos Anjos was forced to withdraw from the card just 11 days beforehand with a foot injury.

Despite the makeshift nature of Diaz stepping on short notice — and the fight being held at the compromised weight of 170 pounds — the UFC 196 pay-per-view reportedly did massive success. UFC president Dana White went on record saying it surpassed UFC 100 in total buys, which did over 1.5 million PPVs.

UFC 196 also featured a women’s bantamweight title bout between Miesha Tate and Holly Holm in the co-main event.

For the featherweight champion McGregor, it was his first loss in the UFC. He had previously gone 7-0, with all of his fights taking place at 145 pounds. The Irishman defeated longtime champion Jose Aldo at UFC 194 to capture the featherweight title, and was attempting to make history by becoming the first fighter in UFC history to hold two titles concurrently by challenging dos Anjos.

The 30-year old Diaz, who had been competing as a lightweight before UFC 196, is riding currently two-fight win streak. Before the first fight with McGregor he defeated Michael Johnson at UFC on FOX 17 in December via unanimous decision.