Anthony Joshua prepares to battle the American YouTuber in an eight-round match which will be broadcast in real-time on Netflix.
Briton Anthony Joshua said he will "dominate completely" the American and "defeat" his opponent as the combatants confronted each other to build hype for the upcoming heavyweight fight.
Former twice world title holder Joshua faces social media star turned fighter Jake Paul - in what is, by the numbers, a massive uneven pairing - at Miami arena on 19 December.
"I will damage his features and hurt his body. I'm here to prove my superiority," the British boxer, 35, declared.
"I'll stamp all over him. That's how fighters think.
"I intend to genuinely try to hurt him. That's my goal."
Despite those words, a relaxed Anthony Joshua and internet personality Jake Paul - normally known for his showmanship - were respectful and maintained decorum with each other.
Paul instead criticized ex Joshua's opponent the Cameroonian fighter and labeled him "a joke" after Ngannou rejected a bout proposal.
Joshua, at the same time, took aim at UK rival Fury - and rejected a large bet 'Tyson Fury' claims he will make on a Paul victory.
"Jake Paul is better than Tyson Fury - he showed up," Joshua said.
"I acknowledge that."
In spite of declaring he will hurt Jake Paul, Joshua refused to talk badly about his opponent's pugilistic talent.
"Jake is a serious fighter," he said.
Paul - who initially became famous on the television network - has primarily boxed MMA fighters or declining opponents since turning professional.
He was defeated by Briton Tommy Fury in last year.
Nevertheless, the novice is still one of the sport's biggest commercial attractions, regularly earning huge paydays.
The 28 year old predicted a knockout win in round four or five and claimed he would prevent the much-anticipated match between Joshua and Fury, which is allegedly in the works for 2026.
"It's going to be me versus Tyson Fury next year," Jake Paul said.
As the two fighters participated in the traditional stare-down, with their size difference clearly visible, it drove home just how improbable this entire matchup is - and how remarkable it is that the bout is truly proceeding.