Conor McGregor has lambasted Khabib Nurmagomedov on social media, labelling him a “scurrying rat” as he chases the rematch against the Russian.

McGregor has since taken the post down which showed a video of him sparring inside the Octagon.

The Notorious will be making his long-awaited return to UFC with a fight against 35-year-old Donald Cerrone. McGregor hasn’t fought inside the cage since October 2018 where he was submitted by Nurmagomedov at UFC 229.

Since that loss, McGregor has spent a year on the sidelines, nursing a hand injury as well as being involved in a high-profile bar altercation.

He was suspended for six months for his part in the aftermath of his last fight in UFC, where a mass brawl took place. McGregor’s first fight back will be on January 18 at UFC 246, marking 15 months out of the Octagon.

The Irish star isn’t messing around and wants a quick rematch for the lightweight title.

Nurmagomedov is, of course, undefeated in 28 fights and most recently choked out Dustin Poirier at UFC 242 in September.

UFC chief Dana White has confirmed that McGregor will be the first in line for a rematch at the UFC lightweight championship should he defeat Cerrone.

McGregor’s January fight against ‘Cowboy’ Cerrone, however, will be taking place at welterweight level.

It will be McGregor’s third fight at welterweight after his two bouts with Nate Diaz in 2016.

Khabib, whose next fight is slated for April against Tony Ferguson, has insisted that he is not willing to give McGregor a rematch.

After an interview with RT Sports, Khabib has cast doubt over fighting in UFC again after his headline bout at UFC 249.

“Well, we don’t have a plan for when we’re going to finish but I do know it is not over the mountains, as they say.

“That time is very close. I don’t want to think about the future, I still have to live to April, I still have to fight, I need to win. So, I don’t like to look too far ahead.

“Now we have an opponent, Tony Ferguson, a very serious opponent. And I think it’s necessary to have this fight then we’ll sit down and think about what’s next.

“We’ll consider whether there’s any point in fighting any more. There will always be a reason to fight, money. But will we need it? We’ll think about it.

“I feel good now. I’m 31 and it’s a very good age to fight, and for sport. I’m far from retirement age, but it’s around the corner.”