YOUTUBE boxing star KSI has stunned fans with his bizarre claim that he could beat Mike Tyson in a fight.
The 27-year-old won via split decision on his professional boxing debut last year against fellow online star Logan Paul.
The Brit fought the American to a draw in their first meeting, while KSI also beat YouTuber Joe Weller in a 2018 amateur bout.
Iron Mike meanwhile is making a comeback in an exhibition against Roy Jones Jr on November 28 after 15 years of retirement.
The former heavyweight champion last stepped inside the ring in June 2005 – where he was stopped by Kevin McBride.
The “Baddest Man on the Planet” was crowned the youngest world champion ever, aged 20, and his illustrious 20-year career saw him knock out 44 of his 50 opponents.
But despite their vastly different careers and experience, KSI reckons he could hang with the now 54-year-old Tyson in the ring.
Speaking in the latest Sidemen video, he answered: “I actually could (beat him) though, I actually could.
“I’m undefeated, no-one has beaten me.”
KSI’s YouTuber pals reacted with uproar at his statement before asking the Londoner how his former rival Logan Paul would fare against Tyson.
KSI replied: “I think Logan would beat Mike Tyson.”
When pushed to justify his reasoning, he said: “The reason why – age is on my side. Age is on my side.
“In the first few rounds I ain’t going [all out].”
KSI later revealed that his coach – highly rated cruiserweight prospect Viddal Riley – texted to say he wouldn’t last against Tyson.
He joked: “Viddal said, ‘Nah, man.’
“He said, ‘You’d have to survive three rounds of three minutes, then possibly.’”
Fans on social media were less forgiving of KSI’s prospects, with one tweeting: “I hope he is joking about mike tyson cause that’s just ridiculous.”
Another said: “Mike Tyson 100 years old, on a walking stick dismantles KSI with one hand.”
A third added: “Sidemen’s recent video has KSI saying — with quite a lot of confidence — he can beat Mike Tyson in a bout. I think I’ve consumed too much internet for the day.”
A fourth reasoned: “Did Mike Tyson ever beat anyone on the level of a Prime Logan Paul? KSI would wipe him out now tbh.”