"I can't imagine after all the talk he's done on X, after all the s*** he said, what it's going to be like to be trapped in a ring with me -- he has made a grave error. And assuming he shows up, October 14 will be the worst night of his life."
Logan Paul is champing at the bit to get revenge on Dillon Danis when they officially face off in their boxing match next month ... telling TMZ Sports his opponent is going to regret making it personal.
We spoke with Paul about the pre-fight antics ... and while he said he knew D.D. would bring the trash talk, he pointed out it's a bit different when lawyers gotta get involved.
"He's a crybaby, legitimately," Paul said. "I'm not just saying this to be like a mean fight companion trying to rile him up. He's a coward. He's made this fight entirely about a woman -- he chose to pick a fight with a woman. She fought back. He's whining about it. He's upset. He's making excuses left, right and center."
Logan added he believes Danis never planned to actually go through with the fight ... and only agreed to it so he could get clout and attention.