Joseph Parker and his team feel they have everything in place to upset Anthony Joshua on Sunday morning in their unification bout - all they have to do is nail the game plan.
Parker told 1 NEWS his final few trainings are about zoning in on the task ahead of him.
"It's mental preparation, keeping sharp," he said.
"I'm just thinking about executing - trying my best to do it 100 per cent so if I do it here, practice it here, when I do it in the ring, it'll flow a lot better."
Parker's trainer Kevin Barry said he needs that kind of focus with the countdown to the title fight on.
"I think we'll have the best Joseph Parker we've seen enter the ring in his biggest ever challenge.
"His mind is very alert right now, he's very focused, he's going over things over and over in his mind."
Barry says the fight could come down to one factor - execution.
"We've got a good gameplan and I'm sure Joshua has got a very good gameplan.
"It'll come down to who can execute their gameplan the best on the night."
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