Carl Froch admits he would find it difficult to "get out of bed" and train for a fight against James DeGale.
The 37 year-old super-middleweight champion is chasing a Las Vegas meeting with Julio Cesar Chavez Jr. before retiring from boxing.
Despite fighting the likes of Andre Ward, Mikkel Kessler and Lucian Bute in recent years, Froch has never been offered a bout in Las Vegas.
"I'm just not motivated to fight another British kid in Britain," Froch told BBC Radio Nottingham, when asked about mandatory challenger DeGale.
"If I was told tomorrow by my promoter that I would be fighting DeGale in the early part of next year I don't think that it'd get me out of bed in the morning to go running."
Carl Froch has beaten George Groves in the eighth round to retain the IBF and WBA super-middleweight titles at Wembley.
Boxers Carl Froch and George Groves have stepped into the ring in a much anticipated world title bout billed as the "biggest fight in UK history".
The IBF and WBA World Super Middleweight Title fight is at Wembley Stadium.
Debate raged on Twitter among boxing fans following Car Froch's controversial ninth round victory against George Groves in Manchester.
Carl Froch has retained his WBA and IBF super-middleweight titles with a controversial ninth-round stoppage of George Groves in Manchester.
Froch was floored by a flinging right hand in the opening moments but clawed his way back into the bout and won a spectacular duel when referee Howard Foster jumped in to end the contest in the ninth.
Foster's intervention with Groves still on his feet sparked uproar, with both corner teams briefly squaring off in the ring while a crowd which had started off resolutely pro-Froch roundly cheered the challenger.