James DeGale has vowed to "shut the doubters up" by winning the European super-middleweight title in style this weekend.
Saturday heralds DeGale's return to the ring after his controversial Commonwealth and British title defeat to bitter rival George Groves - the first loss of his professional career.
The 25-year-old was jeered during the May 21 contest at London's O2 Arena, which Groves won by majority verdict, as well as being slammed by the critics for indulging in too much pre-fight trash talking.
But despite the outcome in what was only his 11th bout since turning professional, it was DeGale and not Groves who landed a crack at European champion Piotr Wilczewski in his very next outing.
"I'll win it in style, just to shout the doubters up," said DeGale.
"After I won the British title after nine fights, maybe people were believing, 'Yeah, he's the man - he's going to do big things'.
"After the Groves defeat - I thought I won, a lot of people thought I won - some have started to doubt me again.
"So maybe I've got come out on October 15 and show everyone that I mean business."
Despite continuing to dispute the judges' decision in the Groves fight, DeGale appears to have learnt some valuable lessons from defeat - certainly more than if he had won.
He is determined to leave nothing to chance this time and claims he has never felt fitter or stronger going into a fight.
"I don't think I have," said DeGale, who has had an extra month to prepare for Saturday's fight at Liverpool's Echo Arena after it was put back from its original September 17 date.
"This has been about a 14-week camp.
"I've had some great sparring, and now it's just about tapering down and doing the business."
DeGale has also vowed to taper down the trash talking and was certainly respectful of his latest opponent, having done his homework on a man who was previously something of an unknown quantity.
DeGale said of Pole Wilczewski, who has only lost one of his 30 fights: "I've done my research on him.
"He's a good fighter and his record speaks for itself. He's only lost the one and he's European champion.
"So he's come to fight, and he can be technical as well when he wants.
"It's going to be competitive but I've got all faith in myself that on October 15, I'm going to be European champion."
Should DeGale triumph he would stay on course for a potential rematch against Groves, who will defend his Commonwealth and British titles against Paul Smith.
And DeGale could not resist a dig at the man he openly despises, saying: "If I win this in style and if Groves beats Paul Smith - that's a big if - the early part of next year I think we'll definitely get it on.
"He can't run for much longer.
"You'd think we'd have had a rematch straight away but he's gone for someone that I stopped in nine rounds.
"He could've taken a harder fight in Kenny Anderson - looks like he's swerving that - and he swerved me."