The British boxer will face the American YouTuber in an eight round fight which will be shown live on Netflix.
Briton Joshua declared he will "stamp all over" the American and "defeat" his opponent as the combatants met personally to promote next month's boxing match.
Former two-time unified title holder Joshua meets YouTuber-turned-boxer Paul - in what is, on paper, a mammoth mismatch - at Miami Kaseya Center on December 19th.
Fighter's Attitude
"I will break his face and hurt his body. My goal is to show my superiority," the British boxer, 35 years old, declared.
"I will dominate him completely. That's a fighter's mentality.
"I'm going to really want to injure him. That's my goal."
Civil Exchange
Despite those words, a composed Anthony Joshua and social media star Paul - usually famous for his dramatics - exchanged pleasantries and kept it respectful with each other.
Paul rather attacked former Joshua rival the Cameroonian fighter and called him "a joke" after the Cameroonian rejected a match opportunity.
Targeting Tyson Fury
Anthony Joshua, at the same time, criticized British rival Tyson Fury - and declined a million-pound wager 'The Gypsy King' states he will put on a Paul victory.
"Jake Paul is superior to Fury - he's present here," the boxer commented.
"I acknowledge that."
Serious Fighter
Despite declaring he will hurt Jake Paul, Joshua declined to talk badly about his opponent's pugilistic talent.
"Jake Paul is a legitimate boxer," he said.
Paul's Background
Jake Paul - who initially became famous on the television network - has mostly boxed MMA fighters or past-their-prime fighters since turning professional.
He was defeated by Briton Fury in last year.
Commercial Attraction
Nevertheless, the relative newcomer remains one of boxing's largest financial successes, regularly earning massive earnings.
Forecast and Belief
The 28 year old anticipated a stoppage in the fourth or fifth round and asserted he would derail the long-awaited match between Joshua and Fury, which is reportedly being planned for two years from now.
"The next fight will be myself against Tyson Fury next year," Paul declared.
Size Disparity
As both boxers participated in the traditional confrontation, with their height and weight contrast on show, it highlighted just how surprising this complete situation is - and how remarkable it is that the match is truly proceeding.