This is what happened when Conor McGregor met The Mountain from Game of Thrones (Pic)

Luckily for the UFC's heavyweights, Hafthór Júlíus "Thor" Björnsson is about 150 lbs too heavy to make the 265 lbs weight limit.

The Icelandic actor and weight-lifter, famous for playing Gregor "The Mountain" Clegane in HBO's Game of Thrones, popped into a gym in Dublin's on Friday to train with UFC fighters Conor McGregor and Gunnar Nelson. McGregor and Nelson aren't exactly small men but they look like absolute children stood next to the 6 ft 9 in behemoth. https://instagram.com/p/9eOn-_gegb/?taken-by=gunninelson We don't think there's any need to equip a monster like this with any more tools to kill a man.