Dereck Chisora has aimed another verbal dig at Dillian Whyte by claiming his London rival has 'gone soft'.
The British heavyweights have been trading insults in recent months since Whyte told Sky Sports News HQ he would welcome a domestic battle with Chisora.
Chisora will firstly challenge Kubrat Pulev for the European title, with a date and venue to be confirmed soon, but the Finchley fighter could not resist a swipe at the south Londoner, who is recovering from shoulder surgery.
"As a fighter? You know what, he's gone soft," Chisora told Sky Sports. "The Dillian Whyte I know from back in the day, but now he has gone soft.
"I've known Dillian since we were young. I used to spar Dillian when he was doing kick-boxing. He was ruthless in those days, but now he's gone soft. Maybe it's his shoulder injury."
During his 30-fight career, Chisora has faced former WBC champion Vitali Klitschko and fellow Brit David Haye in front of huge audiences.
But Chisora insists he wants to go head-to-head with Whyte in east London's small historic venue of York Hall.
"Yeah that fight will happen," said Chisora. "If I have to take that fight, I'll tell Dillian, let's do it 'old school'.
"I would love it in Bethnal Green because it's intimate, the ring is small, beautiful. Tickets would be going for £400 each. Everybody sitting ringside, it's an explosive fight."
Asked if he will share the ring with Whyte this year, Chisora added: "If he hurries up and comes back, I might defend my European title against him. Give him a payday, yeah."
Despite initial negotiations, Chisora failed to agree a fight with Anthony Joshua, who will instead challenge IBF champion Charles Martin on April 9, live on Sky Sports Box Office.
Chisora remains keen to battle the big names in the division and hopes his upcoming clash with the dangerous Pulev could lead to a title shot against WBC champion Deontay Wilder.
"I would like to fight Deontay Wilder, but I have to make myself mandatory for that title," he said.
"I asked for the fight with Pulev to be honest with you. I didn't duck and dive.
"I would like to fight Wilder because he's a great name, he's knocked out nearly all his opponents. I personally just want to fight Wilder."