Hafthor Bjornsson’s now famous workout with Conor McGregor was not planned at all, the former world’s strongest man revealed to talkSPORT.
The clip, from 2015, showing The Mountain from Game of Thrones and UFC two-weight champion McGregor has gone viral on social media for obvious reasons.
The size difference was ridiculous, Thor eclipsed the Irish fighter and had a serious weight advantage.
The pair continued around the mat, attacking and exchanging friendly shots.
Now Thor, an ambassador for Reign Total Body Fuel, has explained how it all happened.
He told talkSPORT.com: “For me he was a cool guy. Nice enough to let me come to her shoot, watch her shoot and take a picture.
“After that, we hung out and it was super cool. It was funny because if you watch the video again I’m wearing jeans.
“I’m just going to take a picture and then somehow this grappling just came out of nowhere.
“We wrestled for about two minutes and then it was over. All the video you see online is basically everything we did that day.
“Not at all (I expected). I was not at all in shape to fight. After those two minutes, I was out of breath.
“I was training just for a strong man and I was not at all in shape to wrestle or do anything like that.”
Since this video was taken, Thor has won the World’s Strongest Man Award and has now moved on to boxing.
He was due to face his fierce rival Eddie Hall this weekend, but an injury at The Beast has carried him over to next year.
Instead, he’ll face off against arm wrestling legend Devon Larratt.
Thor said, “I’m always up for a challenge, always up for it. It doesn’t matter who I fight. Every time I have been in the ring it has been a great experience for me. I’m new to boxing, I’ve been doing this for a year and a half.
“Every time I step in the ring, I learn.
“It’s kinda weird, because I like the guy (Larratt). It’s weird to fight someone you love, it’s better when you don’t love someone.
“We both treat him professionally, we both keep our distance until after the fight.
“I wave at him and that’s about it.” Just to make it more professional. At the end of the day, it’s a fight and I’m going there to hit it.
“After the fight, it’s going to be cool.”
Regarding the postponement of his fight with Hall, he added: “Of course I was disappointed that he got injured, but there was nothing I could have done.
“It’s not in my hands, I just have to move on. Focus on myself, focus on training, and do what I can do.
“Improve my game and my skills. Whenever he is ready and healthy, we will fight.
“I hope it will be early this year.”
Hafthor Bjornsson is an Ambassador for Reign and will face Devon Larratt on September 18. #ReadyToReign