Joseph Parker's promoter David Higgins has hit out at Anthony Joshua after negotiations over a heavyweight unification fight came to a halt.
WBO champion Parker is keen to put his belt on the line in a lucrative showdown with IBF and WBA Super holder Joshua, but with talks currently at a standstill, Higgins has criticised the Londoner over his chin, his social media output and his fans.
Higgins told ESPN: "I'm not sure who calls the shots in these negotiations, whether it's Eddie Hearn or AJ. The demands of their camp are unreasonable and it's very possible that it's driven by Joshua.
"There are rumours that Joshua used to have PR companies do his media and lately he's decided to become more involved. Certainly the recent statements suggest delusions of grandeur.
"His media machine tells us he's the next Lennox Lewis but he's being flattened all the time and hasn't even fought anywhere near the same standard of opposition. It's a bubble that's going to be burst.
"Joshua has made several statements on social media to do with 'superior race' and being the King of Dubai when he's from Watford. Then there was a bit of a 'bromance' with Robert Mugabe.
"He says he wants to be the king but now he's avoiding both unification options."
Higgins recently called a press conference at which he presented the gathered media with a montage of what he claimed was proof of Joshua's inability to hold a shot -- a move that prompted as much discussion over the quality of the production as over the issues themselves.
Reacting to Hearn questioning the quality of the output of Higgins and Duco Events, Higgins stated: "Hearn was deflecting from the issues. We spoke about Joshua's chin and we spoke about what a fair ratio would be. The UK media helped them avoid addressing those issues.
"They wanted to keep all the ratios a secret but the Muhammad Ali Act aimed to make these things more transparent to prevent boxers being treated unfairly. They are trying to completely ignore the key points here.
"If Joshua doesn't unify now, then he needs to be held to account. When the fans start complaining, let it be on record that we did everything we could to unify.
"A lot of British fans have been brainwashed into thinking Joshua is the bullet-proof unbeatable guy but he's actually getting flattened all the time. It's happened in numerous training camp and Wladimir Klitschko also flattened him.
"Compare that to Parker's chin. We offered anyone a £20,000 reward if they could show us a video of Parker being flattened any time, any place. Of course there were no winners because it's never happened.
"I'm getting hate mail from Joshua's 'brainwashed' fans asking me how I can demand that slice of the pie for Parker. That disrespects that Joseph has been in this game for 20-something years."
Parker (24-0, 18 KOs), won the WBO world heavyweight crown a year ago by outpointing Andy Ruiz Jr and has since made defences against Razjavn Cojanu and Hughie Fury.