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KSI almost PASSED OUT from exhaustion while training to fight Tommy Fury. The YouTube, music and boxing star faces Fury in a massive celebrity bout on Saturday in Manchester.
KSI almost passed out from exhaustion as he trained to fight Tommy FuryCredit: X @HappyPunch
KSI was left barely able to standCredit: X @HappyPunch
And KSI lived up to his workaholic reputation in camp for the grudge match having been pushed to his absolute limit.
In a clip from a pre-fight documentary, the Londoner is put through his paces on a versaclimber machine – a climbing-style workout.
His head trainer Alexis Demetriades barks encouragement and counts down as KSI tirelessly works.
After the round is over, the unbeaten social media sensation almost collapses into Demetriades’ arms.
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Somehow, KSI then gets back on the machine for one final round of brutality.
As he works away, Demetriades says: “Every single professional fighter in this gym, you need to beat them.”
Fury, 24, comes into the fight having beaten KSI’s arch rival Jake Paul, 26, by split-decision in February.
Whereas KSI, 30, last fought in May where he accidentally but illegally knocked out businessman-turned boxer Joe Fournier, 40, with an elbow.
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But he snubbed a rematch to instead focus on outdoing Paul by attempting to beat Fury.
KSI’s coaches are so committed to preparing him to the max they offered sparring partners bonus money to KO him.
Demetriades said: “From where he was at when he first came to where he is now, he’s come on leaps and bounds.
“He’s only sparring professional boxers, this whole camp, forget MMA fighters, forget amateurs.
“He’s sparring guys 14-0, 13-0, 12-2, 8-0, 6-0, all with knockouts and all ranked by the British Boxing Board of Control.
“If they think that we’re not taking this seriously, we’ve got guys who are ranked higher than Tommy Fury in the gym.
“And they’re not just moving around, they’re trying to kill JJ and there’s bonus money on the table for them to knock him out.
“From a coaching point of view, all I want to do is put the correct guys in front on KSI and see whether or not he can deal with that and if he can’t then he shouldn’t be fighting.”

KSI with his London Shootfighters coachesCredit: Darren Fletcher More

KSI exploded into a furious rant towards Tommy Fury over his choice of sparring partner ahead of their showdown.The YouTuber-turned-boxer is facing off with Fury, the younger brother of Tyson, this coming Saturday at the AO Arena in Manchester.
KSI is facing off with Tommy Fury on Saturday, October 14Credit: PA
KSI has accused Fury of not taking him seriouslyCredit: Reuters
It comes after one of Fury’s sparring partners was revealedCredit: Rex

However, KSI, who is yet to be beaten in the ring, launched an astonishing X-rated attack on Fury after seeing who the boxer was sparring in preparation for the fight.
Taking to Instagram, KSI – who has 13.2 million followers on the platform – shared a picture of Owen Kirk’s boxing record to his story after Kirk shared an image sparring with Fury to his own page.
The Morecambe middleweight, 24, has a record of three wins, one defeat and two draws.
But KSI was not impressed by the calibre of opponent Fury was going up against, going so far as to accuse the Love Island star of not taking him seriously.
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He wrote: “How f***ing dare you? You’re not taking me seriously at all you f***ing piece of s***.
“I’m preparing myself for the ULTIMATE challenge and THIS IS WHAT YOU’RE SPARRING WITH?!?!
“A middleweight with s*** movement and weak ass punches?!”
However, Kirk did not take the insult lying down.
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Taking to X, formerly known as Twitter, Kirk replied: “@KSI six days until you are finished. Give me any of your fighters 160lbs – 180lbs.”
In KSI’s case, London Shootfighters head coach Alexis Demetriades revealed he has offered money to opponents to knock him out in sessions.
Demetriades said: “From where he was at when he first came to where he is now, he’s come on leaps and bounds.
“He’s only sparring professional boxers, this whole camp, forget MMA fighters, forget amateurs.
“He’s sparring guys 14-0, 13-0, 12-2, 8-0, 6-0, all with knockouts and all ranked by the British Boxing Board of Control.
“If they think that we’re not taking this seriously, we’ve got guys who are ranked higher than Tommy Fury in the gym.
“And they’re not just moving around, they’re trying to kill JJ and there’s bonus money on the table for them to knock him out.
“From a coaching point of view, all I want to do is put the correct guys in front on KSI and see whether or not he can deal with that and if he can’t then he shouldn’t be fighting.”
KSI is an underdog going into the fight considering the vast gap in experience in the ring between himself and Fury.
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The last bout with a social media star Fury was in ended in a split-decision victory over Jake Paul.
Paul’s brother and KSI business partner Logan is fighting Dillon Danis on the undercard.
KSI slammed Owen Kirk, left, as a ‘s***’ middleweightCredit: Instagram / @owenkirk_ More

KSI offered his sparring partners money to KNOCK HIM OUT ahead of his grudge match with Tommy Fury.The YouTube sensation faces the former Love Islander in a mammoth social media melee in Manchester on Saturday night.
KSI faces Tommy Fury in a grudge match this weekendCredit: GETTY
Fury will be the toughest opponent the YouTuber has ever facedCredit: PA
KSI put a bounty on his head for his sparring partners in preparation for the fightCredit: DARREN FLETCHER
Professional boxer Fury – the brother of WBC heavyweight champion Tyson – represents a marked step up in competition for KSI.
And in a bid to be ready for the biggest test of his career, he offered his training partners a healthy reward to take his head off his shoulders.
London Shootfighters head coach Alexis Demetriades revealed: “From where he was at when he first came to where he is now, he’s come on leaps and bounds.
“He’s only sparring professional boxers, this whole camp, forget MMA fighters, forget amateurs.
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“He’s sparring guys 14-0, 13-0, 12-2, 8-0, 6-0, all with knockouts and all ranked by the British Boxing Board of Control.
“If they think that we’re not taking this seriously, we’ve got guys who are ranked higher than Tommy Fury in the gym.
“And they’re not just moving around, they’re trying to kill JJ and there’s bonus money on the table for them to knock him out.
“From a coaching point of view, all I want to do is put the correct guys in front on KSI and see whether or not he can deal with that and if he can’t then he shouldn’t be fighting.”
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KSI – real name Olijade Olatunji – is a huge underdog going into his clash with Tommy.
But he’s adamant he’ll shock the world by winning the fight within four rounds.
He said: “I’m feeling good, feeling confident and feeling ready.
“I’m going to just stand there and fight him, Jake ran away from Tommy’s combinations; I’m not running away, I’m standing in the middle of the ring and I’m fighting him.
“I’ve watched [Fury and Paul’s fight] many times, every angle on slo-mo, every stance, every little bit of detail that I need to know in order to beat Tommy Fury.
“Tommy has got some certain combinations that he likes doing that he’s pretty good at and we’re looking out for that.
“Obviously he’s a big guy that likes to clinch so we’re going to be watching that and we’re going to fight him.
“Just go in there and fight, go crazy, it’s simple. I’m going to test that chin and I’m going to show him that my power is different to Jake Paul.” More

KSI is set to wear the “world’s most expensive mouthguard” in his upcoming boxing fight against Tommy Fury.The YouTuber and Fury will face off this Saturday at the AO Arena in Manchester. More