David Haye has stoked up his bitter rivalry with Tony Bellew by branding the Liverpudlian a "coward" ahead of their heavyweight grudge fight.
The British rivals continued their verbal sparring after confirmation of the big domestic clash at The O2 on March 4, live on Sky Sports Box Office.
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Haye and Bellew clashed live on Sky Sports News and the Londoner could not contain his contempt for his opponent.
Haye said: "He's a coward, he realises what is going to happen on the night. I'm going to absolutely destroy him.
"It's all big talk prior to the fight. Now the fight is signed, I can already feel him cowering away because he knows the task in hand is too big, too strong, too fast, too powerful, and he's going to end up knocked spark out."
Bellew was quick to dismiss Haye's insults and vowed to have the last word in their ugly feud.
"Are we talking about the same person? Listen here clown, there is only one coward here and that is you," said Bellew.
Now the fight is signed, I can already feel him cowering away because he knows the task in hand is too big.
"Don't whinge about no sore toe this time. When the blows get traded, you'll get no excuses from me. You just be prepared to go to the level I'm going to go to.
"There are no cowards here, the only coward is you and that clown of a haircut. You're getting dealt with son."
Haye previously held Bellew's WBC belt and the WBA title at cruiserweight before moving up to claim the WBA heavyweight crown, and insists he has nothing to prove.
"Keep diminishing my achievements to make yours seem a little bit better, keep doing that," said Haye. "If you need confidence by saying I haven't fought anyone, you believe that.
"Don't worry about my credentials, worry about what you do in the ring. Don't worry about saying 'did you do this or that?' When the first bell rings, you'll see exactly what my credentials are."