There might not be a rivalry in MMA than the blood feud between The Notorious Conor McGregor and Khabib Nurmagomedov.

Highlighted by an attack by McGregor and his crew on a bus boarded by Khabib after a press event for UFC 223, and the post-fight brawl at UFC 229, the McGregor/Khabib feud has been ongoing for years. Unlike most fighters, Nurmagomedov is uniquely unfazed by McGregor's stream of constant trash talk, as he's no slouch in the actual fighting department either. And it should come as no surprise that with that amount of talk comes bad blood and potentially cheating. Well, one fan tried to call McGregor out after UFC 229 for an apparently illegal move he pulled, in a now deleted thread:

What was Conor's response, you ask, and why was the thread deleted? Well, a screenshot of his response should answer that question properly:

Yikes.

It should be noted that the brawl after UFC 229 (which was started by Khabib, who made a beeline for McGregor's team as soon as the fight was finished) apparently stemmed from McGregor's trash talk going too far, mocking Khabib's family, home country, and religion:

“You cannot talk about religion,” Nurmagomedov said. “You cannot talk about nation. You cannot talk about this now.”

Well, if nothing else, there's no doubt that Conor McGregor is itching to get some revenge against the mighty Khabib after his tap-out defeat at UFC 229, and it's safe to say that Khabib feels the same. And if this comment is any indication, we could be in for one hell of a sequel. More on this story to come.