The British boxer will face the American YouTuber in an eight round fight which will be streamed in real-time on the streaming platform.
Briton Joshua stated he will "stamp all over" the American and "break" his opponent as the two fighters met personally to build hype for next month's boxing match.
Ex two-time unified heavyweight champion Anthony Joshua meets YouTuber-turned-boxer Jake Paul - in what is, on paper, a huge disparity - at Miami's venue on 19 December.
"I will damage his features and hurt his body. My goal is to show I'm the better fighter," Joshua, 35 years old, declared.
"I'll stamp all over him. That's how fighters think.
"I intend to seriously aim to hurt him. That's what I want to do."
Despite such comments, a calm Anthony Joshua and social media star Paul - typically recognized for his theatrics - were respectful and kept it respectful with each other.
Jake Paul instead attacked ex Joshua's opponent Francis Ngannou and described him as "a joke" after Ngannou rejected a bout proposal.
Joshua, in the meantime, targeted British opponent Tyson Fury - and rejected a £1m bet 'Tyson Fury' says he will place on a Paul win.
"Jake Paul is better than Fury - he's actually sitting here," Joshua said.
"I acknowledge that."
In spite of stating he plans to punish Paul, Joshua declined to comment unfavorably about his opponent's fighting skills.
"Jake Paul is a serious fighter," he said.
Paul - who initially became famous on the Disney Channel - has mainly boxed MMA fighters or past-their-prime fighters since turning professional.
He was defeated by Briton Tommy Fury in 2023.
Still, the novice remains one of the sport's largest commercial attractions, regularly earning huge financial rewards.
The 28-year-old forecast a KO victory in round four or five and claimed he would prevent the highly-expected match between Joshua and Fury, which is reportedly under discussion for two years from now.
"The next fight will be my match with Fury next year," Jake Paul declared.
As both boxers met for the traditional stare-down, with their height and weight contrast on show, it drove home just how surprising this whole event is - and how amazing it is that the bout is truly going ahead.
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