DeGale will fight Eubank Jr in a grudge match in an all-British super-middleweight clash.
The two have more than played their part in build-up, exchanging numerous heated jibes throughout the pre-fight coverage.
Both believe they’re best-placed to win the fight.
“When he first turned professional he was calling me out, he’s very deluded,” DeGale said.
“On 23 February I get my chance to deal with this guy good and proper and finish him.
“After Eubank has lost to me I don’t know where he is going to go. I’m calling this the retirement fight and whoever loses can knock it on the head, it’s game over.”
And on the other hand, Eubank Jr believes he has the credentials to come out victorious.
“This fight has been four or five years in the making and it’s going to be a painful lesson for him,” he said.
“I’ve been training for years to beat him and I know everything about him. James talks retirement, but that has never even come into my mind.
“I hope he can bring the best he can bring on the night and give the fans the most exciting and explosive fight that we possibly can.”
James DeGale vs Chris Eubank Jr. fight card
Joe Joyce vs Bermane Stiverne
Lee Selby vs Omar Douglas
Andre Sterling vs Ricky Summers
Chezerae Nihell vs TBA
Chris Kongo vs TBA
Anthony Cacace vs TBA
Anthony Dirrell vs Avni Yildirim fight card
Jamal James vs Janer Gonzales
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Efe Apochi vs Earl Newman
Money Powell IV vs Javier Frazier
Bryant Perrella vs Breidis Prescott
Brandon Rios vs Humberto Soto fight card
Jose Quiniro vs Joel Cordoba
Joselito Velasquez vs Kevin Villanueva
Hector Tanajara Jr. vs. Ivan Delgado
Diego Pacheco vs. Alberto Aguilar
Seniesa Estrada vs. Yenifer Leon
Omar Aguilar vs. Emiliano Cruz
Sulem Urbina vs. Judith Rodriguez
Boxing tonight – how can I watch?
DeGale vs Eubank Jr will be live on ITV Box Office and will cost £19.95.
It’s on Sky channel 493. The channel is also available on Virgin Media and PS4.
Brandon Rios vs Humberto Soto is available to watch on Sky Sports Action and Sky Sky Sports Main Event, but Anthony Dirrell vs Avni Yildirim isn’t on UK TV.