From TVLine:

Mixed martial arts fighter Conor McGregor will appear in one of Game of Thrones‘ final two seasons, UFC president Dana White recently said during an interview on Fox Sports Live: “I knew a few months ago they were interested in putting him in the show,” White said. “I’m glad he did it. It’ll be great.”

White did not say which role McGregor would play. A rep for the HBO series told TVLine the network does not comment on casting rumors.

Perhaps McGregor will somehow take on the undead, freakishly strong Gregor Clegane? After all — as the video below shows us — the MMA featherweight and Clegane’s portrayer, Hafþór Júlíus Björnsson are already acquainted:

Conor McGregor vs The Mountain (Game of Thrones)03:27

Conor McGregor vs The Mountain (Game of Thrones)