Conor McGregor made his triumphant return to the UFC Octagon in January by defeating Donald "Cowboy" Cerrone via first-round TKO at UFC 246.
That victory came 15 months after his last fight, a fourth-round submission loss to undefeated lightweight champion Khabib Nurmagomedov at UFC 229.
If McGregor had his way, he would get a rematch with Khabib sooner rather than later, per UFC President Dana White.
Their last fight ended in a post-match brawl that involved both camps and spilled into the stands.
Afterward, Nurmagedov was fined $500,000 and suspended nine months, per Lance Pugmire of the Los Angeles Times. Brett Okamoto of ESPN.com reported that McGregor received a $50,000 fine and six-month suspension.
Khabib, who is 28-0 lifetime, returned last September with a third-round submission win over Dustin Poirier for the lightweight belt. He told Okamoto in August that he had no desire for a rematch against at that time.
McGregor feels otherwise, tweeting after Khabib's win over Poirier, "Book my rematch for Moscow." Khabib hails from Makhachkala, the capital city of the Republic of Dagestan, Russia.