The British boxer will face the American YouTuber in an eight-round contest which will be streamed live on Netflix.
Briton Joshua said he will "dominate completely" Jake Paul and "overpower" his opponent as the two fighters came face-to-face to publicize next month's heavyweight fight.
Ex two-time world boxing king Anthony Joshua meets social media star turned fighter Paul - in what is, on paper, a massive disparity - at Miami's arena on 19 December.
Fighter's Mentality
"I plan to injure his face and damage his physique. I'm here to prove I'm the better fighter," Joshua, 35, declared.
"I will dominate him completely. That's the boxer's mindset.
"I will seriously aim to injure him. That's what I want to do."
Civil Exchange
In spite of those words, a relaxed Anthony Joshua and internet personality Jake Paul - typically known for his dramatics - exchanged pleasantries and remained civil with each other.
Jake Paul rather attacked ex Joshua's rival the Cameroonian fighter and called him "not serious" after the Cameroonian rejected a fight offer.
Taking Aim at Tyson Fury
Joshua, meanwhile, targeted UK rival Fury - and rejected a £1m bet 'Tyson Fury' says he will place on a Paul victory.
"[Paul] is superior to Tyson Fury - he's present here," Joshua stated.
"I give him credit for that."
Legitimate Opponent
In spite of saying he intends to punish Paul, Joshua declined to comment unfavorably about his rival's fighting skills.
"Jake Paul is a credible opponent," he said.
Jake Paul's History
Paul - who originally gained popularity on the Disney Channel - has mainly fought MMA fighters or past-their-prime fighters since becoming pro.
He was defeated by Briton Fury in 2023.
Financial Success
Still, the novice is still one of boxing's greatest financial successes, frequently receiving substantial financial rewards.
Prediction and Confidence
The 28 year old anticipated a knockout win in the fourth or fifth round and asserted he would prevent the long-awaited Fury-Joshua bout, which is allegedly in the works for 2026.
"The next fight will be my match with Fury in the coming year," Paul stated.
Physical Disparity
As Joshua and Paul engaged in the customary confrontation, with their size difference clearly visible, it highlighted just how unlikely this complete situation is - and how amazing it is that the bout is truly happening.