UFC president Dana White believes a rematch between Conor McGregor and Khabib Nurmagomedov would be "the biggest fight in the sport's history" after the Irishman's explosive return to the octagon.

McGregor ended a 15-month hiatus by overpowering American veteran Donald Cerrone en route to a ruthless 40-second stoppage in the UFC 246 headliner in Las Vegas for his first mixed martial arts win since November 2016.

With McGregor so impressive in this welterweight outing, there will be a number of fighters clamouring to face him next, including 170lb champion Kamaru Usman and 'BMF' titlist Jorge Masvidal, both of whom were ringside to witness the Dubliner's eagerly-anticipated comeback.

"Donald holds the record for most head-kick knockouts, I'm so happy to get him down with a head kick myself. I'm very, very happy, very proud."

McGregor was relatively untested at 170lbs and came in against an opponent with the most wins (23) and finishes (16) in UFC history, but Cerrone proved no match.

Before he was taken to hospital, Cerrone said of McGregor's shoulder blows: "I'd never seen anything like that, they threw me way off guard.

"He busted my nose then stepped back and head kicked me. I was like 'oh man, it's happening this fast? I got my ass whipped early'."