Hafthor Bjornsson looks unrecognisable in throwback Instagram picture
Game of Thrones star Hafthor Bjornsson posted an incredible Instagram throwback picture of when he was a much smaller version of himself.
'The Mountain' stunned fans by sharing an image of himself in his basketball days alongside a photo of his complete body transformation.
Bjornsson, also known as 'Thor', revealed that the two pictures in question were taken just four years apart, showing the hard work and sacrifice that would have gone into building his enormous frame consisting of a 196lb weight gain.
The picture contained the caption: "Hafthor Bjornsson (The Mountain) used to be a 230lb basketball center. Four years later, he was 396 pounds and took third in the World Strongest Man."
Thor then humorously posted his own comment which read: “That @transparentlabs creatine is working!”
The Icelandic strongman is widely recognised as the greatest strength athlete of all time due to his past accomplishments.
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He became the only man to have won the Arnold Strongman Classic, the Europe's Strongest Man and the World's Strongest Man tournaments in the same year.
His numerous world records have led many to claim Thor to be the strongest man to have ever walked the earth.
After winning all there was to win in Strongman, Thor tried his hand at boxing and defeated fellow strongman Eddie Hall.
The clash was billed as 'The Heaviest Boxing Match in History', with their combined weights coming in at a whopping 295kg.
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Speculation surfaced that he was set to face off against WBC heavyweight champion, Tyson Fury but the showdown failed to materialise.
He later admitted that his passion for boxing never matched up to that of Strongman before announcing a return to strength-based sports.
He said: "I competed for two years off, I worked my a** off, but I didn't feel the same passion for boxing, as I had for Strongman.
"When I did Strongman training it never felt like a job, it felt like me just hanging out with the boys or having fun, whereas in boxing every single day felt like work."