Tony Bellew is already eyeing a rematch with Nathan Cleverly after joining his old rival at cruiserweight.
The Evertonian lost his WBC light-heavyweight title challenge against Adonis Stevenson last weekend, immediately announcing a move up in weight.
Cleverly has already moved up to cruiserweight after his reign as WBO champion at 175lb was ended in brutal fashion by Sergey Kovalev.
Bellew had earlier challenged Cleverly for his title, losing a narrow points decision, and is in no doubt that the pair are on collision course again.
"There's no two ways about it, I detest him and he doesn't like me, so it's going to happen," he told Sky Sports.
"I feel I was one of the biggest light-heavyweights in the world, but there's no point if you can't put it to good use.
"I'll gain the weight the correct way, and I'll enjoy putting weight on and getting back to fighting guys with a more similar size and build to me.
"I'm sure I'll bring a lot more of the old 'Bomber' back too."