Shane Cameron will look to have the last word against trash-talking American heavyweight Monte Barrett, when they meet in Auckland tomorrow night.

Barrett has been vocal in claiming the 34-year-old Kiwi will be no challenge, suggesting Cameron was over his head and was "lunchmeat" for the 41-year-old New Yorker who ended David Tua's career by defeating him last year.

However, Cameron said he was unfazed by the tirade and said he would let his fists do the talking in the ring.

"What he's been saying hasn't got to me at all," he said. "This is boxing, I've heard it all before.

"Come (tomorrow) night, there will be nowhere for him to run and he'll have to answer to me.

"I'm 34 and he's 41, I've potentially got a few more years left, but he is one devastating loss away from retirement and I plan to give it to him."

Cameron has returned from a three-week training camp with British-born former heavyweight boxing champion David Haye.

He said the experience was "hugely beneficial", despite the chance of picking up an injury so close to the bout.

"You have to take risks sometimes and it could have gone seriously wrong, but the calibre of sparring was exactly what I needed.

"I haven't had (sparring) sessions like that in a long, long time," Cameron said. "It was a risk (to train with Haye), something could have gone wrong, but it was a risk worth taking and now I'm really well prepared."

"The Mountain Warrior" was even able to talk fight plans with Haye, who defeated Barrett thanks to a fifth round technical knockout in 2008.

Cameron, who will have his first heavyweight fight in two years, admitted "every fight at this point in my career can be career-defining".

He said he was comfortable at tipping the scales for the fight at around 97kg which could see him have a severe size disadvantage.

"This is the first time in a long time that I will fight at my natural weight.

"When I was younger, I thought size was everything, I'd eat and eat and eat to get big, but now I'd like to think I know better."

- © Fairfax NZ News