George Groves remained ice cool on the morning of his big rematch with Carl Froch, claiming: "I can't lose."
The Londoner is convinced he will leave a sold-out Wembley Stadium tonight with Carl Froch's IBF and WBA super-middleweight belts as the pair renew rivalry following November's bitter Manchester contest.
And after meeting the IBF's second-day weight limit this morning, Groves insisted he is ready to become world champion "in mind, body and soul".
Clutching a mug and looking relaxed at the west London home where he slept on the eve of tonight's Sky Sports Box Office spectacular, the challenger said: "This means the world to me - there's no way I'm going to let this opportunity slip.
"I've prepared to best of my abilities, I'm ready in mind body and soul and we're going to keep that belt in London. There's no way I'm going to get beat."
Froch will start odds-on favourite to defend his titles after his controversial ninth-round win last year, and Groves said: "I'm always the underdog. My wife asked me 'when are you going to not be the underdog?' I said 'never'.
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"Anyone who watched the first fight will know I shouldn't be the underdog, but it doesn't make a blind bit of difference. Everything will be shown tonight."
Froch suggested at Friday's weigh-in that Groves might have struggled to make the 12-stone weight limit, a claim the challenger has dismissed as a desperate tactic.
Both men were inside the IBF's 178lb check weigh-in limit on Saturday morning, and Groves said: "It's not like I've had to crash weight off, so there was no way I was going to be heavier.
"Carl needs to try and find confidence from somewhere. This time he's decided weight-making's the issue.
"You can see from weigh-in yesterday I'm full-faced. My complexion's okay, I'm fully hydrated, on weight and ready to rock.
"I don't get nervous. Excitement will come later but right now I'm pretty chilled. I'll head over to the arena at some point and be at the venue a couple of hours before the fight. Up until that point it's just like any normal day."
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