JOHN FURY has threatened to kick "first-class s***house" Carl Froch "up the a***" following criticism of his son Tyson.
Froch, who retired in 2014 after knocking out George Groves in front of 80,000 at Wembley, has been outspoken since hanging up the gloves.
Conor McGregor, Jake Paul and Anthony Joshua have all been on the receiving end of verbal onslaughts from Froch.
And more recently so too has Fury, who had his whole career completely questioned by Froch.
So it has left the Gypsy King's father John furious as he blasted the former super-middleweight champion.
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He told Boxing Social: “He's a first class s***house, wants a kick up the a***, and he'll get it off me if he ever comes round me.
"They're jealous because people are only interested in current champions. No-one wants to know about has-beens.
"That's why when you see the Furys out of boxing you'll never see us again, we don't hang around as has-beens.
"You're a bum Carl Froch, keep my son's name out of your mouth because you ain't good enough to kiss his f***ing a***.”
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Fury, 35, faces Oleksandr Usyk, 37, on February 17 in Saudi Arabia in what is the first ever four-belt heavyweight unification.
It comes four months after he faced ex-UFC champion and boxing debutant Francis Ngannou, 37, in October.
Fury was astonishingly floored but managed to escape with a controversial split-decision win.
The aftermath of the fight caused Froch to questions Fury's legacy and his famous wins over Wladimir Klitschko and Deontay Wilder.
He told Luckyblock: "It leaves a lot of question marks.
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"How good is Tyson Fury? What’s he ever done? Who’s he actually beaten? He obviously beat Klitschko in a bit of a stinker.
"That was just an awkward, horrible performance where he just got inside Klitschko’s head and messed him up with that jab.
“After the Klitschko fight, Fury had those three big standout fights with Deontay Wilder.
"But how good is Deontay Wilder now? He looked awful against Joseph Parker. So now you start questioning him.
"Is Tyson Fury actually what we thought he was or has he been flattered by the lack of opposition. We'll find out when he fights Usyk.”
