Chris Eubank stated that rival Liam Smith is a "dirty fighter" as the duo met ahead of their January 21 fight.
The pair fight live on DAZN (US, Canada, DACH and Japan only) at the AO Arena, Manchester and appeared on Sky Sports before next weekend’s event.
Eubank said: "He is a dirty fighter though, I've seen quite a few things where…"
Smith interjected, saying: "Don't be moaning already, Chris. You like a fight yourself, don't be moaning already."
Eubank then hit back: "I'm just saying, I like when I see guys doing the headbutting and the elbowing, because that means that they're not true, and when the going gets tough they look for ways out, they look for ways that they're not supposed to use."
Smith offered: "You're reading that all wrong. I'll do anything I can to beat you, anything. It's a fight, it's a called a fight."
Eubank added: "That's what I'm saying. You can be a dirty fighter. For me, I've never been a dirty fighter, I've never done anything in my career which is against the rules.
"So I like watching fighters and seeing them have to resort to the dirty tactics because their skill level isn't enough to get them through the fight, so they have to start using their head and their elbow.
"I've seen you use your head in fights, I've seen you headbutt, I've seen you elbow."
Smith denied he was getting flustered, saying: "You're trying, but again, I don't care."