Hafthor ‘Thor’ Bjornsson has confirmed that his fight with former World’s Strongest Man Eddie Hall is on.The pair have been trading barbs after Bjornsson, best known for his role as Gregor ‘The Mountain’ Clegane on the hit TV series Game of Thrones, broke Hall’s deadlift world record on Saturday with a lift of 501kg.Bjornsson challenged Hall to meet him in the boxing ring and Hall accepted.The Icelandic strongman has since shared a post on Instagram claiming they will meet in September 2021 in Las Vegas.Bjornsson wrote on Instagram: "It’s official. September 2021 in Las Vegas Nevada, the Mountain vs the Beast."The next year and a half of my career will be solely dedicated towards this fight. I can’t wait to have my family ringside as I throw down. I’m coming for you."Shortly after Bjornsson broke Hall's deadlift record, he called out The Beast and promised to "knock him out" in the boxing ring.2016 Arnold Classic“CoreSports just offered me a seven-year contract, I have signed it already," The Mountain declared.“Eddie Hall has been running his mouth now for weeks and I know he has been given the same contract. So Eddie, I just knocked out your record. And now I’m ready to knock you out in the ring."

Hall didn't back down, immediately accepting the challenge.

“1,000 per cent I’m going to sign those papers," he said on Facebook.

“And you know why I’m going to sign those papers… it’s not the money, it’s not the deadlift feud we’ve got going on, nothing to do with that.

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“It’s because you called me a cheat at World’s Strongest Man 2017. I can’t put that to bed, I can’t forget it. People may forget it, but you’ve never apologised.

“You think you should’ve won that year, regardless of the trophies or not, and you let people know that.”

And now it's on. 

We've got more than a year to wait, but boy should it be a cracker.