Eddie Hall has shown off his fitness routine as he prepares to face Hafthor ‘The Mountain’ Bjornsson in a boxing fight.Hall is losing weight in preparation for the bout, recently losing 8kg by performing 100 sit ups a day for 30 days.The 2017 World’s Strongest Man is now down to 162.5kg, in thanks to a strict regime designed to help him when he squares off against Thor.The two will settle their fierce rivalry in Las Vegas next year.Hall is certainly putting the work in. He’s cut 33kg in three years and appears to be very focused on getting in shape.

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In a video posted on YouTube on Friday, The Beast showed off footage of his workout, which was a 32-minute HITT session.

HITT stands for high-intensity interval training, and Hall was aiming to keep his heart rate high.

There were eight exercises in total, including kettlebell swings, burpees and hitting a boxing bag with a bat.

Hall was drenched in sweat by the end of the workout. Anyone fancy giving it a go?

It's clear just how serious Hall is taking this.

And for anyone that is sceptical about the scale of his rivalry with The Mountain, just read what he recently told The Mac Life about his opponent.

“Me and Hafthor have been big-time competitors for a long time," Hall said.

“We’ve got a hell of a history competing against one another.

"We absolutely f***ing despise each other beyond belief. If he was on fire I wouldn’t p*** on him.

“The hatred is 100 per cent real. If I saw Thor face-to-face it would take a lot for me not to punch him in the face."

This really is two guys who hate each other squaring off in the ring.

Bjornsson himself is putting in the work. The Iceland native, who starred in the hit series 'Game of Thrones', recently shared footage of him working the pads.

Click HERE to watch that.

He looked pretty slow, but nobody's expected Thor to base his game on speed and agility.

He's tall and powerful, and he'll be looking to use those attributes when he faces Hall.

GIVEMESPORT’s Scott Wilson says…

Fair play, Eddie.

He’s drastically overhauling his figure in order to be ready to fight Thor next year and it’s definitely worth keeping an eye on his Instagram account to track his progress.

The work that he’s currently doing in the gym is different to his workouts during his strongman days, but he’s going all in on this.

The weight loss, the improved diet, the work ethic... for Hall, this is huge.

What he'd give to defeat his main strongman rival in the ring. 

Both 'fighters' deserve a lot of credit for the work they're putting in and we can't wait to see the fight.