The IBF champ already has an Olympic gold medal and gets a cut of the pay-per-view money his promoters, Matchroom, rake in from their contract with Sky Sports.
The 27-year-old, who will defend his title against Eric Molina tonight (Dec 10), is still yet to face a big name or fight out of the UK – when he will be able to really start adding to his bank balance – but he has penned a hefty deal with US broadcasters Showtime to ensure his name is growing across the pond.
Speaking to the Telegraph, Scott said: “I believe that Anthony Joshua will be the first billionaire fighter. I really do believe that.
“Floyd Mayweather has earned 500 or 600 million, Mike Tyson earned 300 odd million 20 or 30 years ago.
“This guy, as a heavyweight, has got the potential to be the first billionaire fighter.
“He’s going to rule for the next eight or nine years. Within six months to a year he’ll be unbeatable.”
Anthony has already banked around £10m – without breaking sweat – and has set a target of 10 more fights to cement his legacy.