David Higgins, the promoter for WBO heavyweight champion Joseph Parker, is not backing away from everything he's claimed about WBA, IBO, IBF Anthony Joshua.

Joshua's promoter, Eddie Hearn, is daring Higgins to make some of those statements - to Joshua's face - on Tuesday during the final press conference.

Joshua and Parker will collide in a high stakes unification clash in Cardiff, Wales on March 31.

According to Hearn, Higgins is always making certain claims about Joshua when the two of them are exchanging emails.

Now Hearn wants his promotional rival to make these claims to the British star, when they come together tomorrow.

"I like David Higgins and I want him to speak up," Hearn told Sky Sports. "I want him to look Anthony Joshua in the eye and tell him the banterish stuff he says to me.

You cannot say all this stuff in the build-up to get the fight and when the deal is done, go quiet. Parker and his team believe 100 percent they are going to knock Anthony Joshua out and he's been exactly the same. There is a nice little mix there between him and me, and what I did was filled Anthony in on something that Mr Higgins has said, and I think it's added a little bit of spite.

"They are on notice. I want you to look in the eyes of Anthony Joshua and tell him what you truly believe will happen in this fight."

Higgins is standing firm on what he believes with respect to Joshua - including the claim about the British star's inability to take a good punch.

"Eddie and I have a funny relationship," Higgins told Sky Sports. "We get on good, and there's banter. Maybe he's trying to wind AJ up? I don't know. I can't answer.

"Do I backstab Joshua? No, I don't say anything that I don't think is factual. It's hard to wind AJ up. Maybe Eddie showed him a message to fire him up a bit. There's no cloak and dagger. I have talked publicly about Joshua's weaknesses.

"I stand by them. I think he's a bit slow and less mobile than Joseph Parker. I think his chin on paper is not as good. He has been dropped a few times. Parker has never been dropped in his life. That's not trash talk, that's fact."