Ever wanted to see a UFC champion spar with The Mountain from "Game of Thrones"? Now you can.
Hafthór Júlíus Björnsson is an Icelandic professional strongman who made a name for himself playing the brutish Gregor Clegane on the HBO series "Game of Thrones." While visiting Ireland, Björnsson stopped by the Straight Blast Gym for a sparring session with UFC interim featherweight champion Conor McGregor.
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Luckily for McGregor, Björnsson decided not to do what he did to Oberyn Martell back in back in Season 4.
(Warning: Video contains VERY graphic violence)