Having already served up a slice of "humble pie" to George Kambosos, American Devin Haney is warning he is in better shape than when he became undisputed world champion.
Haney became the first man to unify the lightweight division in the four-belt era with a victory by unanimous decision over the Australian ace in front of 40,000 at Marvel Stadium in June.
With a rematch clause in their contract, the 23-year-old will defend his titles on Sunday at the much smaller Rod Laver Arena.
Wearing a red and white beanie emblazoned with "undefeated", Haney promised to deliver an even better performance to send Kambosos into retirement.
"I'm much more confident than the first time," Haney said on Thursday.
"Last time I gave him some humble pie and this time I'm going to send him to retirement."
Haney said that despite his domination of Kambosos at Marvel Stadium he had looked for ways to improve.
"You can always make adjustments, always get better, so we made some adjustments and learned from the first fight," he said.
"We know he's going to come with a different game plan and the same things that worked in the first fight may not work as good in the second but we're prepared for it all.
Unbeaten in 28 fights, Haney has won 15 by knock-out but said he did not need a killer blow to take down 'Ferocious' Kambosos.
"We've got to see how the fight plays out - we're prepared to win by any means necessary and if a knock-out punch comes ... but winning is our main focus."
The Kambosos camp were unhappy with the referee in the first fight and have successfully lobbied for a so-far unnamed Japanese referee they believe will not allow Haney to get away with what they felt was excessive holding.
The young American said it would not make any difference.
"It won't change anything," Haney said.
"(Kambosos) is making up every excuse in the book - I was holding, it was this, it was that. He can keep saying it but the talk doesn't matter.
"No matter what referee is there, I'm going to go in there and do what I'm going to regardless."
With a bigger frame than Kambosos - many believe he could soon move up to the 140 pound (63kg) division - Haney has previously struggled to make the 135 pound (61kg) limit.
But with his personal chef again making the trip to Melbourne and an injury and illness-free build-up, Haney said he felt in great shape.
He has also had his trainer father Bill by his side after the older Haney was denied a visa into Australia until the night before the last fight.
"My weight is better than it was last time which is great," Haney said.
"I'm feeling healthy, strong, I'm ready to go - I'm excited for this."