Daniel Cormier has a fighter in mind of who is the GOAT of the heavyweight division.

The UFC light heavyweight champion is slated to fight UFC heavyweight champion Stipe Miocic in the main event of the upcoming UFC 226 pay-per-view event.

UFC 226 is set to take place on Saturday, July 7, 2018, at the T-Mobile Arena in Las Vegas, Nevada.

The main card will air on pay-per-view at 10 p.m. ET while the preliminary card will air on FOX Sports 1 at 8 p.m. ET and the promotion’s streaming service, UFC Fight Pass, at 6:30 p.m. ET.

During the UFC 226 media conference call, DC admitted that fighting Miocic will be the biggest challenge thus far in his pro-MMA career. However, that doesn’t make him think that Miocic is the best heavyweight star of all-time.

Former UFC heavyweight champ Cain Velasquez is the GOAT according to DC.

“Stipe has proven that he can sustain his success and also we got to watch him from day one. You watched a guy that went to war with [Joey Beltran], Stipe went to war with him and as he continues to fight, you see him evolve. That’s why I’m fighting him.”

“This is the biggest fight of my career cause I’m fighting the heavyweight champ of the world,” Cormier said (transcript courtesy of MMANtt). “The most successful heavyweight champ in the world. I think Stipe is great. Do I think he’s the best heavyweight of all time? No. I still believe Cain Velasquez is but I do believe he’s the most successful heavyweight champion of all time. Yeah, it’s a big fight.

“I’ve been in a lot of big spots. I’ve fought Jones twice. I fought at UFC 200. I fought main events and Stipe has too, but I’ve fought in a lot of big, big spots and I believe this one ranks as high if not higher than everything I’ve ever competed at.”

Cormier has already gone on record by stating that he wants to hang up his gloves by March 20th, 2019, the day he turns 40 years old.

Thus, the reason he believes that he can only accept two fights after challenging UFC heavyweight champion Stipe Miocic in the main event of the upcoming UFC 226 pay-per-view event.