Tony Bellew mocked David Haye for his "failing" in Hollywood and says he will do the same when they meet in the ring.
The bitter British rivals went to verbal war again following the announcement of their heavyweight clash, at The O2, on March 4, live on Sky Sports Box Office.
The pair were both on Sky Sports News HQ and Bellew, who recently starred in the American sports drama 'Creed', taunted Haye, who was linked with an acting career following his heavyweight loss to Wladimir Klitschko back in 2011.
Haye v Bellew on Box Office
British rivals to fight at heavyweight live on Sky Sports Box Office, on March 4
"Listen David, you wish you were me," said Bellew.
"You wish you were me in that Hollywood movie. You went to Hollywood and failed; you went to Hollywood to try and crack it and failed.
"You've been living in nightclubs ever since.
"I am the first live fighter since Wladimir Klitschko and let's just get something straight, you didn't fight, you just danced and ran all night."
Bellew suggested Haye, the former undisputed world crusierweight champion, spends his life in nightclubs, before again laughing off his recent opponents.
The Everton fan and current holder of the coveted WBC greet belt at 200lbs, went on to mock his looks, saying both fighters are 6ft 3in only for the Londoner's "stupid hairstyle" making him "about 6ft 9in", but was serious when giving his prediction.
"It's quite simple, I hit him clean on the chin, he goes to sleep," he said.
"I only need to hit him on the top of the chin, the top of the head, anywhere, other guys wobble and struggle, lesser guys than me.
"If I hit him clean he's going. But I am under no illusion that if he hits me first, I'm going too. This is high-class boxing and this is what happens when two punchers meet.
"The main thing is I get in there and if this fights gets down to guts and determination or anything that goes beyond four rounds, David is going to quit.
"David's going to b****, because that's what he is."