Natasha Jonas and Lauren Price went head-to-head when recording a new edition of Gloves are off before the world title unification on March 7.
Jonas and Price will fight for the WBC, IBF and WBA featherweight championships at the Royal Albert Hall, live on Sky Sports.
Price, an Olympic gold medalist and WBA belt holder, told Jonas directly that she expected to win every round of their contest.
The Welsh star is yet to drop a round in her professional career and aims to continue that run in her next fight.
“I believe so,” Price said Sky Sports afterwards.
She added: “I believe it’s my hardest test. It’s just another step. I believe I’m very good and I’m very fast.”
However, Jonas dismissed that suggestion.
“It doesn’t matter until we’re in the ring,” Jonas said. “She keeps saying these things. But you’re putting pressure on yourself to support her.
“You’re not going to lose a round? Okay, what happens when the first round goes and you’ve lost it? What are you going to do then, because you said you’re not going to lose a round? What happens then in the second round, three , four, five, six?
“I’ll expect you to win every round for the opposition she’s had.”
Jonas insisted that Price’s claim actually betrayed a lack of confidence.
“Yeah. I think she has to tell herself that to make herself believe it. To be like, ‘There, I’ve got this,'” said the Liverpudlian. “You’re trying to convince yourself.
“I just think you’re improving yourself. You’re telling yourself, ‘I can do it.’ That’s what I believe she’s doing.
“I’m not buying it.”