The British boxer will face Jake Paul in an eight-bout match which will be broadcast in real-time on the streaming platform.
Briton Joshua declared he will "stamp all over" the American and "defeat" the American as the pair confronted each other to publicize the upcoming boxing match.
Former two-time world heavyweight champion Anthony Joshua faces YouTuber-turned-boxer Jake Paul - in what is, on paper, a huge mismatch - at Miami's venue on 19 December.
Fighter's Mentality
"I will damage his features and break his body up. My goal is to show I'm superior," the British boxer, 35 years old, stated.
"I will dominate him completely. That's the boxer's mindset.
"I will seriously aim to hurt him. That's my goal."
Respectful Interaction
In spite of those words, a calm Joshua and internet personality Jake Paul - typically known for his dramatics - exchanged pleasantries and remained civil with each other.
Jake Paul instead attacked ex Joshua's opponent the Cameroonian fighter and called him "a joke" after the Cameroonian turned down a bout proposal.
Taking Aim at Fury
Anthony Joshua, in the meantime, criticized British rival Fury - and rejected a large bet 'The Gypsy King' states he will put on a Paul win.
"Jake Paul is better than Tyson Fury - he showed up," the boxer stated.
"I respect him for that."
Legitimate Fighter
In spite of declaring he will punish Paul, Joshua declined to talk badly about his opponent's fighting skills.
"Jake is a credible opponent," he said.
Paul's Background
Paul - who first rose to fame on the television network - has primarily fought MMA fighters or declining opponents since turning professional.
He lost to Briton Tommy Fury in last year.
Financial Success
However, the inexperienced fighter is still one of boxing's largest money-making draws, frequently receiving huge earnings.
Prediction and Confidence
The 28-year-old predicted a stoppage in round four or five and asserted he would derail the highly-expected Fury-Joshua bout, which is allegedly under discussion for two years from now.
"It will be myself against Tyson Fury next year," Jake Paul stated.
Size Difference
As both boxers participated in the traditional stare-down, with their physical disparity on show, it emphasized just how improbable this entire matchup is - and how astonishing it is that the match is really proceeding.