At last Saturday's UFC 226 pay-per-view, Daniel Cormier beat Stipe Miocic to become a two-weight champion. 

DC now holds the heavyweight and light-heavyweight belts, becoming only the second person in UFC history to hold titles in two weight classes simultaneously. 

But arguably, his historic victory wasn't even the main talking point of the evening.

DC CALLS OUT LESNAR 

After Cormier knocked Miocic out, he jumped on the mic to address Brock Lesnar, who was watching the fight cageside. 

The new heavyweight champ demanded that The Beast join him in the Octagon - and Brock did just that. 

After a bit of a scuffle, some more trash talk and a shoving match, Lesnar was escorted away from the ring - but it looks like their fight is on. 

UFC president Dana White was quick to talk it up, suggesting that DC's first heavyweight title defense will be against The Beast. 

But there is a problem standing in their way.

THE SUSPENSION

Back in 2016, Lesnar was suspended for one year after he tested positive for a banned substance following his win against Mark Hunt at UFC 200. 

When that decision was made, Brock informed UFC and the USADA that he was retiring from MMA - which pulled him out of the company's drug testing programme. 

Now, as Lesnar wants to fight again, he will have to serve the remainder of his ban - which includes six months of required drug testing before he can return to the Octagon. 

But to begin that process, he needed to be re-entered into the USADA's testing pool - and for days, it was unclear if he had done that or not. 

RE-ENTERING THE POOL

Following events on Saturday, the USADA has now confirmed that Brock did just that, and actually went back into the pool on July 3. 

"After receiving notice of his intent to compete in the UFC, USADA re-entered Brock Lesnar to the testing pool on July 3," the organization's statement read. 

They also confirmed exactly when Lesnar will be eligible to fight in UFC again. 

WHEN BROCK CAN FIGHT AGAIN 

"With six months and four days remaining on his period of ineligibility, Lesnar will be able to compete on or after January 8, 2019, should he remain in compliance with the UFC Anti-Doping Policy."

So, as long as The Beast doesn't violate any part of the UFC’s anti-doping policy in the next six months, he will be able to face Cormier in January's PPV.