When WBO heavyweight champion Joseph Parker (24-0, 18 KOs) steps in the ring with IBF, IBO, WBA champion Anthony Joshua (20-0, 20 KOs) - the New Zealand fighter will be tagged as the underdog by most experts.

But if Parker pulls off the big unification, he does not view the outcome as an upset.

"I feel if I win it will not be a shock. I do think it is my time and I'll come there confident in my ability. I genuinely believe I can knock him out and there is no pressure where I'm standing right now. There is no expectation on me, no pressure," Parker told The Daily Telegraph.

A deal is nearly finalized, for the date of March 31 at Principality Stadium in Cardiff, Wales.

Parker and his team are convinced that Joshua has a very vulnerable chin and has no real ability to take a good punch.

Parker and his promoter, David Higgins, even held a press conference in New Zealand to present video evidence to back their statements on Joshua's "glass chin."

The New Zealand star has a single directive on his mind - to chin check Joshua and put him down for the full count.

"All I'm focused on is being in great shape, training hard and doing my best to knock him out and catch his glass jaw," Parker said.

"This is my sole mission: to smash to bits the man with the glass chin. Our team has come up with this feeling and this theory that he has a glass chin and my goal is to smash his glass chin, crack it and see if he can withstand the punches that are coming his way. I really can't wait for this fight."

Parker was last in action back in September, when he traveled to Manchester to win a twelve round decision over mandatory challenger Hughie Fury.

While Joshua retained his three titles in October, with a tenth round stoppage of mandatory challenger Carlos Takam at Principality.