Anthony Joshua is set to fight the American YouTuber in an eight round contest which will be broadcast in real-time on the streaming platform.
Briton Joshua declared he will "stamp all over" Jake Paul and "defeat" the American as the pair met personally to build hype for next month's boxing match.
Former twice unified boxing king Joshua meets YouTuber-turned-boxer Jake Paul - in what is, on paper, a massive uneven pairing - at Miami's Kaseya Center on 19 December.
Boxer's Attitude
"I will damage his features and damage his physique. I'm here to prove I'm superior," Joshua, 35, stated.
"I will dominate him completely. That's a fighter's mentality.
"I will genuinely try to injure him. That's what I want to do."
Respectful Exchange
In spite of these statements, a composed Joshua and internet personality Jake Paul - normally known for his dramatics - were respectful and kept it respectful with each other.
Paul rather attacked former Joshua opponent Francis Ngannou and described him as "ridiculous" after Ngannou turned down a fight offer.
Targeting Fury
Joshua, at the same time, targeted British rival Tyson Fury - and rejected a million-pound wager 'The Gypsy King' states he will put on a victory for Paul.
"Jake Paul outshines Fury - he's actually sitting here," the boxer said.
"I acknowledge that."
Legitimate Fighter
Despite saying he intends to damage his opponent, Anthony Joshua chose not to talk badly about his rival's pugilistic talent.
"Jake Paul is a legitimate boxer," he stated.
Jake Paul's History
Paul - who originally gained popularity on the Disney Channel - has mainly boxed mixed martial artists or past-their-prime fighters since becoming pro.
He lost to Briton Tommy Fury in last year.
Financial Attraction
Still, the relative newcomer continues to be one of boxing's greatest commercial attractions, frequently receiving substantial earnings.
Forecast and Confidence
The 28 year old forecast a knockout win in the fourth or fifth round and stated he would prevent the much-anticipated Fury-Joshua bout, which is apparently being planned for two years from now.
"The next fight will be me versus Tyson Fury next year," Paul stated.
Physical Difference
As both boxers participated in the customary stare-down, with their size difference clearly visible, it emphasized just how surprising this complete situation is - and how astonishing it is that the match is really going ahead.