Joseph Parker's manager David Higgins believes there is "utter disarray" in Derek Chisora's camp ahead of a bout against the Kiwi heavyweight next month.
Parker and Chisora are scheduled to collide on October 27 (NZ time) at the O2 Arena on the undercard of Regis Prograis and Josh Taylor's junior welterweight unification clash.
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Chisora has already gone on a wild rant, threatening to withdraw from the contest, while he remains without a trainer five weeks out from the contest.
"I tell you what, their mental state is 10 times worse than mine, and that's saying something," Higgins told Sky Sports UK. "I'm assuming David Haye is the trainer because no one knows?
Chisora has only lost one of his last five fights - against Dillian Whyte, who has also beaten Kiwi Parker.
Even though saying things are looking bad for Chisora, Higgins knows Parker can't take him lightly.
"It's plain sailing for Parker in Vegas, it's utter disarray with Chisora in London, however, he remains dangerous.
"He's been in disarray before and pulled a rabbit out of a hat, so we don't underestimate Derek Chisora, or his camp at all, not one bit.
"We take them very seriously, in fact - it's a cracker of a fight. Might be one of the best heavyweight fights of the year at the O2 Arena. We're serious, but Joseph at his best should beat Chisora.
"They can try all the mind games they want, but it might even strengthen Parker. It doesn't work on Parker, the mind games."
Join us on October 27 for live updates of the Parker v Chisora heavyweight fight