Daniel Cormier vs. Jon Jones 2 announced as new UFC 200 main event

The rematch is officially back on.

UFC Lightweight Heavyweight Champion Daniel Cormier, a former Oklahoma State wrestler, will defend his title against interim champion Jon Jones in the UFC 200 main event July 9 at T-Mobile Arena in Las Vegas, the UFC announced on ABC's "Good Morning America" on Wednesday.

"UFC 200 has been, uh, interesting to say the least, putting this thing together," UFC president Dana White said on the show. "There's been some crazy things that have gone on. Some ups and downs. Jon Jones just fought on Saturday night and won his fight against OSP. He's been out for 15 months, and now he's back, and he wants his light heavyweight UFC title back. So the main event will be Daniel Cormier versus Jon Jones."

Featherweight champion Conor McGregor (19-3) in a non-title welterweight rematch against Nate Diaz (19-10). The UFC pulled McGregor from the card last week, however, after he refused to fly to Las Vegas for a commercial shoot and news conference.

Cormier was originally slated to face Jones at UFC 197 this past Saturday, but the champion withdraw due to a leg injury. Jones (22-1) defeated Ovince Saint Preux via unanimous decision for the interim title in his return from a 15-month layoff at UFC 197 last weekend. It was Jones' first appearance since January 2015, when he defeated Cormier by decision to record his eighth consecutive title defense. Three months later, Jones was arrested in Albuquerque, New Mexico, on a felony hit-and-run charge and stripped of his UFC title. In September, he entered a plea deal that allowed him to avoid jail time.

In Jones' absence, Cormier (17-1) won the vacant title by submitting Anthony Johnson at UFC 187 via rear-naked choke. He defended the title at UFC 192 with a split decision over Alexander Gustafsson.

Cormier and Jones have a well-documented history. The two got into a brawl at a press conference for UFC 178 in 2014 when Cormier stepped in for an injured Gustafsson. But that was their only fight in 2014 as Jones pulled out of the fight citing a leg injury. The two heated rivals eventually fought at UFC 182 in January 2015 with Jones winning by five-round unanimous decision.

The bout will be the third title fight on the UFC 200 card. Miesha Tate will defend the women's bantamweight title against Amanda Nunes, and Jose Aldo and Frankie Edgar will fight for the interim featherweight title.

Cormier won't be the only OSU alum on the card. Johnny Hendricks, a former welterweight champion, is scheduled to fight Kelvin Gastelum. The two-time NCAA champion is coming off a first-round TKO loss to Stephen Thompson in February.