Brutal One Punch Knockouts in Boxing | Part 1, 2

Boxing Fan Club
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2 Video Views·Nov 15, 2025
A one punch knockout in boxing is when a fighter lands a single, clean punch that immediately knocks out the opponent — ending the fight right then and there. It’s one of the most dramatic and definitive finishes in the sport.
So without further ado, here are the greatest one punch knockouts in boxing | Part 1,2
A one-punch knockout, also called a clean KO.
It's not just strength. Timing, accuracy and technique are crucial.
So without further ado, here we go.
Brutal one-punch knockouts in boxing.
An ex-pimp Stevenson is a bona fide knockout artist.
Something boxing has precious few of these days, but he's one of them, so enjoy it.
He says he has friends here. People pick him up at the airport.
That body shot at Wills will take some more work.
Down goes Garcerino.
Jai Obitaya didn't care who was in front of him.
The message was going to be delivered that he is still the baddest cruiserweight on the planet
and Ellis Zorro was the unfortunate victim.
Plenty of intention.
Plenty.
Bully.
Big shot.
Single shot.
Zorro's out.
Zorro is out.
His head hit the canvas.
That's bad news.
Give an indication of what was to come earlier in the round.
Mason Menard.
On April 15, 2016, lightweight boxer Mason Menard delivers knockout of the year punch.
Good luck to you. Come out at the back.
Night, night. Night, night.
Joshua Greer debuted his famed night-night pillow celebration
following his one-punch knockout over James Smith.
Joe Cordina produces a memorable single-shot knockout of Kenichi Ogawa
to capture the IBF super featherweight title.
This fight was billed as a potential fight of the year.
However, the fight ended abruptly and dramatically
when Sergio Martinez delivered a knockout blow.
Chris Eubank tall claw magic trick against John Jarvis.
David Lemieux scored a massive knockout of Alvaro Gaona.
Crazy left hook has the potential knockout of the year in GIF format.
Guys like Rubio found.
Callum Smith's frightening knockout of Lennon Castillo.
He is making the second defense of his title.
Shinsuke Yamanaka, the WBC bantamweight champion,
was defending his title against Tomas Rojas.
The fight ended with a scary knockout.
Venezuelan fighter Cristian Baez paid a heavy price
for failing to remember one of the most important rules,
protect yourself at all times.
Sugar Shane Mosley knocked out Ricardo Mayorga
with one second left in the 12th and final round.
It was a dramatic but hardly legendary fight.
It was a fight that was hard to watch
after the first knockdown from Danny Garcia.
And a knee is taken by Salka.
In the second round Garcia seeking, looking to destroy this grip
and Hart gets rocked with that left hook.
Salka down and it's over.
Statement made by Danny Garcia.
Surprise as he was the prohibitive favorite.
Garcia's family celebrating but...
Devin Haney is known more for his slick skills
than his power punching.
But try telling that to Antonio Moran.
Looks to be 100% okay as he eats a jab.
But that last one was a good round for him.
Whoa and a body shot sends Moran down.
He claims his foot was stepped on
but that is going to be ruled a knockdown.
We are watching a potential future superstar here.
And now Haney's got the fire in his eyes.
A one-hitter-quitter.
Devin Haney, a walk-off home run.
The dream continues for the 20-year-old sensation.
Murat Gassiev barely threw a punch throughout most of the fight.
He was just charging up that big right hook
which dramatically called a halt to proceedings.
Thank you all for your attention.
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