By Liam Napier

Shane Cameron is understood to have landed a unique three-week training camp with former British heavyweight boxing champion David Haye.

Fairfax Media can reveal Haye is funding return flights to London for Cameron's team, including manager Ken Reinsfield and trainer Henry Schuster, and will also cover accommodation costs and pay the Kiwi brawler a sparring fee.

"They were looking for a sparring partner. They knew that Shane is a tough guy. It's win-win for the Haye camp and us. Our whole team is travelling together," Reinsfield said.

It's understood Cameron and his team leave on Friday and will return just over a week before his anticipated showdown with American Monte Barrett at Auckland's SkyCity on July 5.

Haye lost his WBA title to Ukrainian champion Wladimir Klitschko last year, blaming that defeat on a broken little toe. But the 31-year-old, one of the biggest names on the heavyweight scene, has since come out of retirement for a grudge fight with Zimbabwean-born Londoner Dereck Chisora on July 14.

The English-based boxers have unfinished business after being embroiled in a ugly scrap where Chisora attacked Haye after losing to Vitali Klitschko in Munich last February. 

For Cameron, the long-haul trip to train in Haye's professional surroundings, is not about money. In his eyes, there is no better scene or opponent to learn from.

In November 2008, Haye won a comprehensive TKO against Barrett, knocking him down five times, twice in third and fourth rounds before the fight was stopped in the fifth.

From that perspective, Cameron feels Haye can offer unique insights and advice into how to expertly combat the 41-year-old New York journeyman.

The timing of the hastily-arranged joint venture has mutual benefits for both fighters.

"We're not going up there for the money. We are going for ideal preparation," Reinsfield said.

"It's spectacular sparring. You're talking about a former WBA world champion and contender who is trying to eye up Vitali Klitschko for a title shot.

"Haye said he would help with any advice on fighting Barrett so that's great."

Reinsfield downplayed any potential jet lag affects and concerns Cameron would be burnt out by the time he fought Barrett. 

"There's no point going up there for just a week. It's a long way to go. It can only be good for the fight with Monte. This is outstanding preparation," he said.