The British boxer will face the American YouTuber in an eight round match which will be broadcast live on the streaming platform.
Briton Joshua said he will "overwhelm entirely" the American and "break" the American as the combatants met personally to publicize next month's bout.
Ex twice world heavyweight champion Anthony Joshua battles social media star turned fighter Jake Paul - in what is, theoretically, a massive mismatch - at Miami Kaseya Center on December 19th.
Boxer's Mentality
"I plan to injure his face and damage his physique. I'm here to prove I'm the better fighter," the British boxer, 35 years old, stated.
"I will dominate him completely. That's a fighter's mentality.
"I'm going to genuinely try to hurt him. That's my intention."
Civil Exchange
Despite such comments, a composed Anthony Joshua and social media star Paul - usually recognized for his showmanship - exchanged pleasantries and maintained decorum with each other.
Jake Paul rather attacked ex Joshua opponent Francis Ngannou and described him as "a joke" after Ngannou rejected a fight offer.
Targeting Tyson Fury
Joshua, meanwhile, targeted British rival Fury - and declined a million-pound wager 'The Gypsy King' claims he will make on a Paul victory.
"Jake Paul is superior to Fury - he showed up," the boxer said.
"I acknowledge that."
Serious Opponent
In spite of stating he plans to hurt Jake Paul, Anthony Joshua chose not to talk badly about his opponent's boxing ability.
"Jake Paul is a credible opponent," he stated.
Paul's History
Paul - who first rose to fame on the Disney Channel - has mainly fought MMA fighters or declining opponents since becoming pro.
He lost to Briton Fury in last year.
Commercial Attraction
However, the novice is still one of the sport's biggest commercial attractions, regularly earning huge financial rewards.
Prediction and Belief
The 28 year old forecast a KO victory in rounds four or five and asserted he would derail the highly-expected match between Joshua and Fury, which is reportedly under discussion for two years from now.
"The next fight will be myself against Tyson Fury in the coming year," Paul stated.
Physical Disparity
As both boxers engaged in the traditional confrontation, with their physical disparity clearly visible, it emphasized just how improbable this entire matchup is - and how remarkable it is that the bout is truly going ahead.