Carl Froch claims he may just end the career of the "arrogant, cheeky, disrespectful" George Groves this weekend.
Froch puts his IBF and WBA super-middleweight titles on the line on Saturday when he faces challenger and fellow Briton Groves at Manchester's Phones4u Arena on Saturday.
The pair have exchanged verbal barbs ahead of the bout, which will be Froch's 14th title fight and Groves' first.
Froch, 36, has not been impressed with some of the things Groves, 25, has said but claims that has only motivated him more.
The Nottingham fighter, speaking after a conducting a public workout, told Sky Sports News: "My motivation is my two world-title belts, my legacy and the fact this kid is coming in arrogant, cheeky, disrespectful, downright rude - and I don't like that.
"With boxing I get the chance to set the record straight and make sure I put that right.
"There is no better job, and no more satisfying job for me to do, other than giving George Groves a pasting. I am looking forward to doing that.
"If he had been a bit more humble and a bit more polite, a bit placid, in the build-up and appreciative of his chance against the champ, then I might have taken my foot off the gas.
"I prepare very diligently anyway, I am always very professional in what I do, but his attitude and the way he has conducted himself - very, very childishly, immaturely, arrogantly - in the build-up to the fight, has given me that little bit of extra motivation to just grit my teeth in sparring and push on at the end of the run, everything that makes me a bit fitter and sharper on the night.
"I am taking it very, very seriously and George Groves is in a world of trouble.
"He is going to get an absolute shock on Saturday night because, not only am I going to beat him, I am going to beat him in spectacular fashion and potentially end his career. He is not going to see that one coming."
Froch, who has won 31 of his 33 fights, accepts undefeated Londoner Groves deserves his shot at a world title.
But even though Groves has an impressive record behind him, having taken 15 of his 19 victories by knockout, Froch is not overly impressed.
He said: "Anybody that is going to be coming into the ring unbeaten, challenging for a world title, even if they have not really shown they belong there in the past, they are going to put in that extra 10 per cent in training.
"It is their chance, it is his big shot. I am taking him very seriously.
"Do I think he deserves it? Well, he obviously does because he is next in line for the IBF world title.
"Hopefully he is super-fit and has been training hard, so his legs will be stronger, so when I do start to connect on his chin - and I will start to connect on his chin - hopefully he doesn't fall over straight away.
"George Groves can't take a shot, so as soon as I start smacking him on the chin his legs are going to turn to Bambi, he is going to be all over the shop.
"There are some big names that I have boxed that have been unbeaten before coming into the fight with me.
"Some have gone on to win world titles, some have just retired because I have just knocked them sick.
"We will see how George Groves comes back from this loss, but it is going to be a devastating defeat for him."