Veteran Danny Green has brushed off criticism of the weight limit for his world title fight with Kiwi Shane Cameron, saying he's the one taking a big risk.
Cameron will dwarf him by up to 10 kilos when they clash for the vacant IBO cruiser-weight crown at Melbourne's Hisense Arena on Wednesday night.
The pair sat side by side at a Melbourne media conference on Monday, with the difference in size obvious despite Cameron shedding eight kilos to make the catch-weight of 89kg agreed on for the bout, with the usual weight for the division 90.7kg.
Cameron is a natural heavyweight and has fought at 108kg and also 106kg when he "wrestled" with former NRL player John Hopoate in 2010.
"It is a massive difference and a massive advantage," Green said of his bigger opponent.
"I expect Shane, a man of his size, to tip the scales at 96(kg) minimum by the time of the fight while I'll tip them at 86.5 maybe.
"Of course, it is a risk but it's a risky sport. It's part of the excitement."
The West Australian has been criticised for use of a "Danny Division", though it's a legal tactic which he also used when defending the belt against undefeated American BJ Flores in 2010.
He said it's something Cameron had to do to obtain a fight against a boxing "big fish".
"It's the catch-weight and it's been going on forever. Sugar Ray Leonard did it against Donny Lalonde and Tommy Hearns ... Manny Paquaio, Floyd Mayweather have all fought catch-weight," said Green.
"I'm the one putting my balls on the line fighting a heavyweight.
"I'm just trying to square the advantage that he's got as a much bigger, naturally-stronger man.
"We agreed it wouldn't happen anywhere over 89kg ... and, unfortunately, the boys are starting to carry on and whinge a bit."
While 39-year-old Green is gunning for his fourth world title, it's Cameron's initial attempt and the first by a New Zealander since David Tua fought Lennox Lewis in 2000.
Green is widely tipped to retire - for the second time - after the fight but said a decision was yet to be made.