SYDNEY - Daniel Geale has a plan to stop Anthony Mundine and is adamant the controversial boxer's latest antics won't stop him from executing it when he puts his IBF world middleweight title up for grabs in Sydney next week.

Mundine on Thursday refused to rule out staging a political protest during the singing of the national anthem before taking on fellow Aborigine Geale at the Sydney Entertainment Centre on Wednesday.

At first Mundine refused to speak about a report claiming he'd backed down from the stunt.

"I ain't here to talk about that", before he was pushed further on the matter. "I may. I may not."

Tasmanian-born Geale is looking for revenge after Mundine scored a controversial split points decision over him in 2009. It was the only defeat of Geale's career.

"Graham Shaw (trainer) and I have got a great plan and we're going to make it happen," Geale said.

"He's (Mundine) tried every little thing to try and throw me off my game but no matter what he does he's not going to throw me off my game.

"... I'm mentally strong. I'm a lot stronger than when we fought the first time. He didn't try as many of these tricks and strategies but he knows he's up against it now."

Geale, who late last year had his Aboriginal heritage questioned by Mundine, admits it would be disappointing if the former rugby league player carried through with the protest.