The British boxer will face the American YouTuber in an eight-bout contest which will be broadcast live on the streaming platform.
British boxer Joshua said he will "stamp all over" Jake Paul and "break" the American as the two fighters confronted each other to build hype for the upcoming heavyweight fight.
Former twice world boxing king Anthony Joshua meets social media star turned fighter Paul - in what is, by the numbers, a huge disparity - at Miami's arena on December 19th.
Boxer's Attitude
"I plan to break his face and break his body up. I'm here to prove I'm the better fighter," Joshua, 35 years old, said.
"I'll stamp all over him. That's how fighters think.
"I'm going to seriously aim to cause him pain. That's my intention."
Respectful Interaction
Despite such comments, a relaxed Joshua and social media star Jake Paul - normally known for his showmanship - were respectful and maintained decorum with each other.
Paul rather targeted former Joshua's opponent the Cameroonian fighter and described him as "a joke" after the Cameroonian turned down a bout proposal.
Targeting Tyson Fury
Joshua, at the same time, took aim at British rival Tyson Fury - and refused a large bet 'Tyson Fury' says he will place on a Paul victory.
"Jake Paul outshines Tyson Fury - he's present here," Joshua said.
"I respect him for that."
Legitimate Fighter
In spite of declaring he will damage his opponent, Joshua refused to comment unfavorably about his opponent's fighting skills.
"Jake Paul is a legitimate boxer," he stated.
Jake Paul's History
Jake Paul - who initially became famous on the Disney Channel - has mostly boxed MMA fighters or past-their-prime fighters since becoming pro.
He lost to British fighter Fury in last year.
Commercial Attraction
Nevertheless, the novice continues to be one of boxing's biggest financial successes, consistently making massive paydays.
Prediction and Confidence
The 28-year-old forecast a KO victory in rounds four or five and stated he would stop the much-anticipated Fury-Joshua bout, which is reportedly being planned for two years from now.
"The next fight will be me versus Tyson Fury in the coming year," Jake Paul said.
Size Disparity
As the two fighters participated in the traditional face-off, with their height and weight contrast on show, it emphasized just how unlikely this entire matchup is - and how remarkable it is that the fight is really happening.