Moses Itauma leaves Demsey McKean folded on the canvas with ...

MOSES ITAUMA knocked 6ft 6in former kickboxer Demsey McKean out in a single savage round.

The 19-year-old Chatham wonderkid was supposed to get a serious test against the giant Aussie on the undercard of Tyson Fury's rematch with Oleksandr Usyk.

Moses Itauma locked horns with Demsey Mckean on the Usyk vs Fury 2 undercardCredit: GettyThe 19-year-old was cool, calm and collected in the biggest test of his careerCredit: GETTYItauma dropped McKean with two massive overhand leftsCredit: APMcKean was spun around by the final left hand and unable to continueCredit: GETTY

But the sensational southpaw dropped the 34-year-old with a magnificent right-hook-left-hand combination in the opener.

And when ref Bob Williams let the action carry on after an eight count - perhaps unwisely - Itauma used the same combination to send McKean back Down Under.

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The towering tattooed test took Filip Hrgovic 12 rounds in August and he kept warning Itauma in the Riyadh build-up that he had taken on more than he could handle.

But the freakishly talented teen rammed those words - and both his fists - down his throat to continue his ridiculously fast rise toward a world title.

Itauma started off stabbing to the stomach with his jab and he soon realised that made McKean drop his guard.

The next time feinted a body dig he switched the target of the attack and battered McKean’s brain.

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Moses Itauma celebrates his stunning blowout victory over Demsey McKeanCredit: Getty

The tough veteran deserves credit for getting up but it was a very brief resurrection and he was buried again swiftly after.

Itauma celebrated his latest faultless step-up by racing to the ropes and making a cut-throat gesture to the growing crowd.

God help the next victim that gets fed to the heavyweight divison's most vicious predator.