Deontay Wilder and Tyson Fury clashed at the final press conference ahead of their long-awaited rematch.
The heavyweights will meet again this Saturday, live on talkSPORT, with tensions flaring at the MGM Grand on Wednesday night as the clock ticks down.
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In the initial face-off at the start of the presser, Fury pushed right up on to Wilder’s chest as the pair exchanged verbals.
Wilder then shoved Fury backwards, with the ‘Gypsy King’ responding in kind.
Despite security jumping in between the pair, their back-and-forth continued with Fury telling Wilder: “You big dosser. You’re getting knocked spark out.”
Wilder replied: “You don’t even know how you got up.”
Fury hit back: “I’m gonna punch your face right in for you and laugh at you.
“You couldn’t even beat me last time. Three years out the ring and I still beat you.”
To which Wilder said: “You had two warm-ups, you had three training camps, you’re supposed to be in shape.”
Fury concluded by singing a Chumbawamba’s ‘Tubthumping’: “I get knocked down, but I get up again, you ain’t never gonna keep me down.”
Wilder went on to mock his rival about his well-documented issues with depression and suicide.
Fury has claimed that the American’s increased profile is down to him and Wilder said: “He should not dare to say that he got me into big-time boxing. If he does, I’ll slap him.
“Don’t you ever forget that when I found you, you were strung out on coke. You were like a big house, contemplating killing yourself.
“Don’t you ever forget who brought you to big-time boxing. I brought you back, dragged you back, I put food on your table for your family to eat and I’m doing it again for a second time.
“I’m the one who sells the pay-per-view and tickets. They come to see me.”
Fury hit back, declaring: “I was the man who beat Wladimir Klitschko. I gave you your biggest payday. You’re a bum – nobody even knows you in your own country.”
Responding to more goading about suicide, the Brit said: “And that’s the man you take on? A man thinking about killing himself?
“You thought you were getting an easy victory, didn’t you? Well it didn’t work out – I came back and kicked your arse all over.”
talkSPORT will bring you live and exclusive radio coverage of Wilder vs Fury 2 this weekend, with our coverage starting on Saturday night