Thor Bjornsson has stopped every professional boxer he has fought in sparring ahead of his grudge match with Eddie Hall, according to coach Billy Nelson.
The Icelandic star is currently making the final stages of his preparations for his boxing clash against Hall on March 19 in Dubai.
He has been training with Scottish trainer Billy Nelson and will be heading to Dubai shortly to complete his preparations.
And Nelson has warned Hall that he will be in for a huge shock when the pair meet after the strongman's progression.
He said on his charge's YouTube channel. "Let me just say all the professional boxers he has sparred he has stopped every single one of them. Eddie you are in for the shock of your life pal."
Bjornsson has a "hate" for his rival and deliberately took up the sport to settle his rivalry with the British strongman.
He has competed in three bouts prior to this with his maiden contest taking place as an exhibition against Steven Ward.
Bjornsson later held another exhibition with Simon Valily where he was dropped in a real test of his character.
Bjornsson then dismissed arm-wrestler Devon Larratt with an opening round beatdown after Hall had been forced to pull out after suffering a detached bicep in training that required surgery.
Despite the delay Bjornsson is confident that his hard work in training will finally be rewarded on Saturday week.
"I am that confident going into this fight that I am not worried about any of the travelling," Bjornsson continued. "It is just going to make me stronger.
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"Because we are working on finding more sparring partners in America to spar with. I have been travelling to UK to spar lots of heavyweight guys, and this has been a great opportunity to socialise, meet my sponsors and get some sparring in.
"I am super excited to go to Dubai, everything is coming together. A lot of people are commenting online saying 'what is Eddie's next excuse going to be next?'
"I hope that he is not going to pull out of this fight again with a new injury, Eddie we are this close just train smart, remember to rest and don't get injured. Honestly it wouldn't surprise me but I would be f****** f****** disappointed because I want to beat your a**.
"You can't do that man for the fans and for the people. He actually said last time that he was willing to fight injured so there is no excuses now Eddie."