Professional strongman and winner of the World's Strongest Man competition Eddie Hall has agreed to fight 'The Mountain' from Game of Thrones in a boxing match.

This comes after actor Hafthor Bjornsson broke the record for the largest deadlift in the world - a record which was previously held by Hall, who deadlifted 500kg back in 2016, per the BBC.

In a video posted to Bjornsson's YouTube channel, he deadlifted 501kg (1,104 lbs) and immediately called his rival out.

Watch The Mountain beat Hall's record below:

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"CoreSports just offered me a seven-year contract, I have signed it already," the 31-year-old revealed in the video below.

"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."

"It's time to put your fist where your big mouth is, and sign the CoreSports contract. I'm ready, are you ready?" the Mountain continued.

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It wasn't long before Hall took Bjornsson up on the challenge, stating in a Facebook video: "1,000 percent I'm going to sign those papers."

"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.

"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 apologized."

Watch Hall's response below:

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"I cannot have that, that's why I'm going to sign those papers," he continued.

"Because I want to teach you a lesson. And that lesson is going to be me knocking you the f*** out.

"I don't care if you're 6ft 9in, I don't care if you're an actual giant. I don't care.

"I'm gonna train the hardest, prepare the hardest... do everything in my power to step in that ring and rip your f***ing head off. So Thor, get training, I'll see you in the ring."

Eddie Hall agrees to fight 'The Mountain' from Game of Thrones in boxing match