David Higgins, promoter for WBO heavyweight champion Joseph Parker, has fired back at Eddie Hearn, promoter for IBF, IBO WBA heavyweight champion Anthony Joshua.
Parker and Higgins held a press conference with the media in Auckland, where they dared Joshua to accept what they called their "final bottom-line" of a 65-35 split in the British boxer's favor.
They showed the media in attendance a video - put together by Duco - where numerous fighters claimed to have dropped Joshua in sparring and the amateurs, and they also showed footage of Joshua getting shook up in several of his recent pro fights.
Team Parker said it was strong evidence to back their position that Joshua has a "glass chin."
Hearn, who hopes the two sides can reach an agreement, felt the presser did very little to boost the value of Parker or the boxer's marketability for a Joshua unification.
"You've got to love this David Higgins - he is absolutely off his swede," Hearn exclusively told Sky Sports.
"We are getting closer on a deal, but holding a press conference in a broom cupboard with a promotional video that looks like it's been done by my eight-year-old daughter is not the one, in terms of justifying your commercial value. Negotiations are ongoing and we are hoping a deal can be reached."
But Higgins believes the press conference is the least of Hearn's worries.
The New Zealand promoter has cautioned Hearn to place his worries on the chin of Joshua.
"What Eddie should be worried about it is Joshua's chin, not our press conference. It's pathetic," Higgins told Sky Sports.
"Parker is unbeaten, he's a world champion, and he deserves 35 per cent. They will pay us 35 per cent and not one per cent less, or we'll take another fight, and we might lose, and they might fight [WBC champion Deontay] Wilder. So be the case.
"But I tell you this, Joseph Parker, his family, the trainer and me, we are united and we are adamant that's the deal. Let's make the fight. If you actually watched the press conference, what we said was correct, serious, and pure fact. Joseph Parker, his family, the trainer and me, we are united and we are adamant that's the deal. Let's make the fight."