OLEKSANDR USYK gave a bizarre metaphor when comparing "greedy belly" Tyson Fury to "classy" Anthony Joshua.
Usyk won the WBA, IBF and WBO unified titles against AJ in 2021 before defending them in their rematch a year later.
He then did the British double in May by becoming the first to defeat Fury, adding the missing WBC belt to complete his undisputed collection.
Talk has now turned to a long overdue domestic dust-up between the Joshua, 34, and Fury, 35.
And the perfect man to compare both is unbeaten Usyk.
He said on : "Anthony Joshua has classy boxing. Greedy Belly, my friend Tyson Fury.
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"It’s like sparkling water, when you open it without shaking it’s good. If you shake it, it [blows].
"Sparkling water is Tyson Fury and still water is Anthony Joshua. Tyson’s arms are like two metres, like a rope."
Usyk beat Fury via split-decision in their Saudi Arabia classic with a rematch pencilled in for December 21.
The Ukrainian, 37, endured sticky spells during the historic title unification and looked in trouble midway through the bout.
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For all the love for resurgent AJ... these two are head, shoulders and fists ahead of everyone else
OLEKSANDR USYK is the deserved undisputed heavyweight champion of the world, writes Wally Downes Jr
A great biggun doesn’t always beat a great littleun, not when David has the weight of a besieged nation on his shoulders and is able to swing each compatriot into every punch.
Usyk did what Usyk does, he moved magnificently, he counter punched and he outworked his taller and heavier opponent.
He somehow manages to use every physical disadvantage to his favour.
But what the hell is Fury doing getting up in round nine?
Why is a father-of-eight with £300million in the bank, three best-selling books and a Netflix series going to the well like?
Britain is not fighting back Putin’s army, Morecambe is not occupied.
So when the 35-year-old’s senses are scrambled, when the canvas is calling him, when he is so desperate not to be felled he is willing to bounce around all the ropes like a drunk, when he eventually has to collapse into a corner, why doesn’t he just stay down?
He has earned the right to surrender as well as his millions.
The sheer courage and guts and bloody mindedness it takes to climb off that deck, with a broken nose and a crumbling ego is not comprehensible to us mortals.
Fury said he felt he won the fight but was too dignified to call robbery or corruption, no doubt his dad will taint that decency by the time you’ve read this.
The rematch will be superb.
Because for all the love we have for a resurgent Anthony Joshua – who was ringside for that iconic event – these two polar opposite men are head, shoulders, fists, hearts and brains ahead of everyone else.
There is the top two, then there is a void and then there is the rest.
Read Wally's big fight verdict in full here...
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But Usyk - who became the first ever four-belt heavyweight undisputed champ - revealed Fury was not his hardest-hitting rival.
He said: "I would say toughest fight, yes, but I think biggest punch, no.
"Derek Chisora, very tough guy. With Derek, I don't remember which hand if it was left or fight but I would block it and it would be like a baseball bat. It was very dangerous."