Deontay Wilder warned Dominic Breazeale that they have reached "judgement day" after the pair weighed in ahead of their New York grudge fight.
The unbeaten Wilder puts his WBC heavyweight title on the line against his American compatriot on Saturday and tipped the scales at 15 stone and nine pounds.
Wilder has faced criticism in the build-up to the fight for reiterating a desire to kill in the ring, comments that led to the WBC confirming they will hold a hearing.
There was another tirade launched at Breazeale – who registered 18 stone and two pounds on the scales – at a tense news conference on Thursday, but Wilder insisted 24 hours later that the time for talking was over.
"There's nothing more that needs to be said for tomorrow is judgement day," he said.
"When we get in the ring we're both going to see red and this is what makes a great fight.
"Our words that we speak, our actions that we're going to display in the ring this is what makes great fights, don't you all want great fights?"
Wilder last fought in a contentious draw against Tyson Fury in December and he is expecting another explosive showdown.
Breazeale believes Fury should have been awarded the decision in that contest.
"You guys know damn well he lost that last fight, man. He did not beat Fury," Breazeale said.
"There hasn't been any development on Wilder since the last four years, probably in his whole professional career. He looks the same as he did as an amateur and even then he didn't look great. To think that he's been the WBC champ for what, four years now, that's a disgrace to the heavyweight division."
