Viewers of TV's Game of Thrones may know Mr Bjornsson better as Gregor ‘The Mountain’ Clegane.
There's also a behind the scenes 'making off' video too...
Caterpillar tug-o-war challenge
In the latest of Caterpillar’s ‘Built for It’ trials, Europe's reigning Strongest Man, Hafthor ‘Thor’ Bjornsson, hams it up for a game of tug-o-war against a Cat D10T tractor in Iceland.
