The British boxer will face the American YouTuber in an eight round contest which will be streamed in real-time on the streaming platform.
Briton Joshua said he will "dominate completely" Jake Paul and "break" the American as the pair confronted each other to build hype for the upcoming heavyweight fight.
Ex twice unified heavyweight champion Anthony Joshua meets YouTuber-turned-boxer Paul - in what is, theoretically, a mammoth mismatch - at Miami's arena on 19 December.
Fighter's Mindset
"I plan to break his face and hurt his body. I'm here to prove I'm the better fighter," the British boxer, 35 years old, stated.
"I'll stamp all over him. That's the boxer's mindset.
"I intend to seriously aim to hurt him. That's my intention."
Civil Exchange
Despite these statements, a composed Joshua and internet personality Paul - typically known for his showmanship - were respectful and remained civil with each other.
Jake Paul instead criticized former Joshua's opponent the Cameroonian fighter and called him "not serious" after the Cameroonian rejected a fight offer.
Targeting Fury
Anthony Joshua, in the meantime, targeted UK rival Tyson Fury - and refused a large bet 'Tyson Fury' says he will place on a Paul win.
"Jake Paul is better than Fury - he's actually sitting here," the boxer stated.
"I acknowledge that."
Serious Fighter
In spite of declaring he will hurt Jake Paul, Anthony Joshua declined to talk badly about his rival's boxing ability.
"Jake is a credible opponent," he remarked.
Paul's Background
Paul - who originally gained popularity on the Disney Channel - has mostly boxed MMA fighters or declining opponents since becoming pro.
He lost to British fighter Fury in last year.
Financial Success
However, the novice continues to be one of boxing's biggest commercial attractions, frequently receiving massive earnings.
Prediction and Belief
The 28 year old forecast a KO victory in rounds four or five and asserted he would derail the much-anticipated Joshua–Fury fight, which is reportedly in the works for two years from now.
"It's going to be my match with Fury next year," Jake Paul declared.
Size Difference
As Joshua and Paul engaged in the traditional confrontation, with their size difference evident, it emphasized just how surprising this complete situation is - and how amazing it is that the fight is actually going ahead.