Daniel Cormier and Brock Lesnar are the two hottest names in UFC right now.
Even though Lesnar is still currently under contract with WWE, that didn't stop him watching Cormier's fight cageside last weekend.
UFC 226
In the main event of July's pay-per-view, DC took on Stipe Miocic for the heavyweight title.
In doing so, light-heavyweight champion Cormier was looking to become only the second fighter in UFC history to hold titles in two weight classes simultaneously.
On Saturday night, he achieved just that.
The 39-year-old knocked his opponent out in the closing stages of the first round - but it was actually what happened following the fight that's made most of the headlines.
LESNAR VS CORMIER
After his historic victory, DC took the mic to call out The Beast, demanding that he entered the Octagon.
Lesnar did just that and started squaring up to Cormier, talked a bit of trash and then shoved the new heavyweight champ.
He was then escorted out of the cage, but it's pretty clear that a super fight between Lesnar and Cormier will be happening soon.
The current WWE Universal Champion has now re-entered the USADA testing pool ahead of his return - and could be fighting DC as early as January next year.
Lesnar's expected return has got a lot of UFC fans excited, even if they're going to have to wait at least another six months to see him fight.
But there's one person who's not at all impressed by the Lesnar and Cormier beef - and that's fellow UFC fighter Nick Diaz.
AN MMA EMBARRASSMENT
The Stockton fighter himself has only just become eligible to fight again in UFC, following his one-year suspension.
Diaz has since posted on Instagram suggesting that he's open to fighting for any title in any weight class and that he's not at all happy with Lesnar's return to UFC.
He explained that he's "sick" of the “baddest man on the planet bs” and that Dana White should let him, not Lesnar fight DC next.
Diaz also said that he's "embarrassed" for Cormier and the sport, suggesting that he only got into UFC because it wasn't "WWF".
Check out his full tirade below.
Damn. Those are some pretty strong and personal words from Diaz, who's firing most of his shots at Lesnar, but some at Cormier too.
If he has his own way, it will be Diaz in the Octagon with DC next, not Lesnar.