Anthony Joshua is the name on everyone's lips at the moment after producing the biggest victory of his career on Saturday night.
The British boxer took on Wladimir Klitschko at Wembley Stadium in front of more than 90,000 fans.
The crowd went wild when he floored the 41-year-old in the fifth and eleventh rounds.
The win saw Joshua receive £15 million, but the future could see a lot more for the Watford-born fighter. As sports promoter Barry Hearn told the Sun, Joshua could be a bigger brand name than David Beckham.
Hearn says: "He's already a wealthy man. He could easily be the first billionaire in boxing. He's still young. At 27 he has at least ten years ahead of him in the ring and if he keeps winning the money will keep coming.
"His commercial potential outside the ring is huge, way beyond Beckham and the world's top footballers. He has a much bigger cross-over in terms of potential."
Hearn added that Joshua has to keep winning to ensure his brand becomes even more marketable and, even more interestingly, Showtime, the American TV company with whom Joshua has signed a multi fight deal with, now envisage the heavyweight champion's future being primarily based in the United States.
Showtime executive Stephen Espinoza told Sky Sports "In our discussions with both [promoter] Eddie Hearn and Anthony, coming to America is definitely a priority.
"Ultimately from the US perspective, the ultimate destination would seem to be - at some point in the next year - hopefully Joshua versus [WBC Heavyweight Champion] Deontay Wilder."
The 27-year-old, who stands at an impressive six foot six inches, is CEO of his own company, AJBoxing, and has lucrative sponsorship deals with Apple, Lucozade, Lynx and Sky Sports.
After the win against Klitschko, Hearn expects there will be a line of companies wanting to sign him up.
But marketing guru Mark Borkowski has also told the Sun, Joshua has a long way to go before he makes his first billion.
He says: "You have got to make it in America and you have to be taken seriously by fans there. He'd have to have a series of fights in Las Vegas or Madison Square Garden in New York - the whole shooting match.
"I'm sure it's a dream for him and it's great that we are all leaping up and down. But it's a long journey from here to being a billionaire."
Joshua is already looking for his next fight. In his winning speech, he called out Tyson Fury for a fight asking him when he's ready for a showdown.
He's told the BBC he's wasting no time preparing for the next time he steps back into the ring. Joshua says: "I want to start planning how I'm going to improve, because I know my next fight people are going to be watching, you know? I've done my learning now, I can't keep saying, 'Oh, he's still learning, he's a relative novice.'
"I've got to get better. So I get back to the gym and I work out where my weaknesses are and just improve on them."
We can't wait to see what the future holds for the champ.
Featured Image Credit: PA