Derek Chisora slapped on his war paint before promising to KO Oleksandr Usyk on fright night.
The Brit weighed in three stone heavier than his unbeaten opponent who is fighting for just the second time as a heavyweight.
And he vowed to deliver a stunning upset on Halloween and earn himself a world title shot.
"I'm fit and you'll be very surprised with what happens in the ring," he said.
"I would rather him knock me out, than me do nothing.
"Either I will knock him out or he will quit on his stool. That's what we're going for."
Usyk made his heavyweight debut 12 months ago when he stopped Chazz Witherspoon.
And he knows victory would secure a shot at Anthony Joshua - or the vacant world title.
"He kept saying: 'I know you understand what I'm saying'," he said.
"Then he kept saying: 'War, war, war!'
"That's exactly the shape I aimed for. It could have been a bit more, but it's still good.
"It's important to make a good statement on Saturday to avoid hesitation from my opponents in the future.
"Now people say they don't believe me, they don't trust me.
"On Saturday I will make my statement for the heavyweights."
