Anthony Joshua will face the American YouTuber in an eight round contest which will be streamed in real-time on the streaming platform.
Briton Joshua declared he will "stamp all over" the American and "defeat" his opponent as the pair came face-to-face to build hype for next month's bout.
Ex twice world heavyweight champion Joshua meets YouTuber-turned-boxer Paul - in what is, by the numbers, a massive disparity - at Miami's Kaseya Center on 19 December.
Fighter's Attitude
"I will break his face and damage his physique. I'm here to prove I'm the better fighter," the British boxer, 35 years old, declared.
"I plan to overwhelm him. That's the boxer's mindset.
"I'm going to genuinely try to hurt him. That's what I want to do."
Civil Interaction
Despite such comments, a relaxed Joshua and internet personality Jake Paul - usually recognized for his theatrics - exchanged pleasantries and maintained decorum with each other.
Paul instead attacked ex Joshua's opponent the Cameroonian fighter and labeled him "ridiculous" after Ngannou rejected a fight offer.
Targeting Tyson Fury
Joshua, in the meantime, took aim at UK rival Fury - and declined a large bet 'Tyson Fury' states he will put on a Paul victory.
"[Paul] is superior to Fury - he's actually sitting here," Joshua stated.
"I give him credit for that."
Legitimate Opponent
Despite stating he plans to damage his opponent, Joshua declined to comment unfavorably about his rival's pugilistic talent.
"Jake Paul is a legitimate boxer," he stated.
Jake Paul's History
Jake Paul - who originally gained popularity on the television network - has mostly boxed MMA fighters or faded names since turning professional.
He lost to Briton Fury in last year.
Financial Success
Still, the relative newcomer continues to be one of the sport's greatest financial successes, regularly earning huge financial rewards.
Forecast and Belief
The 28-year-old predicted a stoppage in the fourth or fifth round and claimed he would stop the much-anticipated match between Joshua and Fury, which is allegedly being planned for two years from now.
"The next fight will be my match with Fury next year," Jake Paul said.
Size Disparity
As both boxers engaged in the customary stare-down, with their size difference clearly visible, it emphasized just how surprising this whole event is - and how amazing it is that the bout is actually proceeding.