Eddie Hearn was present at Anthony Joshua's latest training session and was seen to be in absolute awe of the formidable boxer.
The IBF champion was put through his paces by his trainer which involved a string of fierce hits to the pads, shown in a YouTube video posted by iFL TV.
Judging by the clip, one would hate to be on the receiving end of one of AJ's punches, and could just imagine the intensity while actually in a world title match with the promising Brit.
The boxer can be seen grunting and sparring while landing heavy and precise blows to the pads.
With Joshua completely focused on the training, Hearn could not help but show his astonishment at the 27-year-old's power and aggression.
The promoter also reacted to the cameraman when asked: "What did you say?", with a hilarious reply: "F*** that!"
Clearly, Hearn was not excited at the prospects of facing Joshua anytime soon and certainly wouldn't want to be one of those pads which were taking a hammering.
Not always known as the most likable character, the 37-year-old promoter was getting an up-close view of the champion in action and did not seem to want any piece of it.
Scroll to 01:50 in the below video to hear Hearn's brilliant remark.
Joshua is set to face Wladimir Klitschko in a much-anticipated match on April 29, and judging by this training session alone, the Ukrainian veteran will have his work cut out while attempting to win back the IBF crown.
The match, set to take place at the illustrious Wembley stadium in London, has been in the making since the latter half of 2016 and is set to garner a massive audience both at the venue and around the world.
Klitschko is eager to clinch a world heavyweight title following his loss to former champion Tyson Fury in 2015, making this a mouth-watering contest.
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