Conor McGregor vs Gregor 'The Mountain' Clegane: UFC star spars with Game of Thrones actor

It was something of a mismatch

Conor McGregor vs Gregor 'The Mountain' Clegane (YOUTUBE)

Conor McGregor vs Gregor 'The Mountain' Clegane - it sounds like something from the imagination of the makers of Street Fighter. But this match up has actually happened.

McGregor, arguably the most exciting fighter in UFC, against Hafthor Julius Bjornsson, the strongman who plays the terrifying character in mega-series Game of Thrones.

The pair came together not for an actual fight, but to spar ahead of McGregor's UFC featherweight title fight in December.

Had they been fighting for real, it would have been something of a mismatch. Bjornsson, who as well as starring in Game of Thrones came second in last year's World's Strongest Man competition, stands at nearly seven feet tall and weighs more than 28 stone. McGregor in comparison is a foot shorter and weighs just over 10 stone.

The pair met at Straight Blast Gym in Dublin where McGregor is preparing for his fight with Jose Aldo, which will take place in Las Vegas.

It's not clear if McGregor is a fan of Game of Thrones, but if he had seen what happened to Oberyn Martell, the last man to take on 'The Mountain', he might have opted not to get involved.