The British boxer will face Jake Paul in an eight-round contest which will be shown in real-time on Netflix.
Briton Joshua said he will "overwhelm entirely" the American and "break" his opponent as the pair confronted each other to promote next month's boxing match.
Former two time unified boxing king Joshua faces YouTuber-turned-boxer Jake Paul - in what is, theoretically, a mammoth mismatch - at Miami's arena on 19 December.
Fighter's Mentality
"I will break his face and break his body up. My goal is to show I'm the better fighter," Joshua, 35 years old, declared.
"I plan to overwhelm him. That's how fighters think.
"I intend to seriously aim to injure him. That's what I want to do."
Civil Exchange
In spite of such comments, a calm Joshua and internet personality Paul - typically famous for his showmanship - exchanged pleasantries and kept it respectful with each other.
Jake Paul rather criticized former Joshua's rival the Cameroonian fighter and labeled him "not serious" after Ngannou turned down a bout proposal.
Targeting Tyson Fury
Joshua, at the same time, criticized UK opponent Tyson Fury - and refused a £1m bet 'The Gypsy King' claims he will make on a Paul win.
"Jake Paul is better than Tyson Fury - he's actually sitting here," the boxer said.
"I acknowledge that."
Legitimate Opponent
In spite of saying he intends to punish Paul, Anthony Joshua declined to talk badly about his opponent's fighting skills.
"Jake Paul is a serious fighter," he remarked.
Jake Paul's History
Jake Paul - who initially became famous on the television network - has primarily boxed MMA fighters or faded names since turning professional.
He lost to Briton Tommy Fury in last year.
Commercial Success
Still, the relative newcomer is still one of the sport's greatest financial successes, frequently receiving huge paydays.
Prediction and Belief
The 28-year-old anticipated a stoppage in the fourth or fifth round and claimed he would prevent the long-awaited match between Joshua and Fury, which is reportedly in the works for two years from now.
"It will be my match with Fury in the coming year," Jake Paul said.
Physical Difference
As the two fighters met for the usual face-off, with their size difference evident, it emphasized just how surprising this complete situation is - and how remarkable it is that the match is truly happening.
