He has already captured the IBF heavyweight title, but Anthony Joshua has warned his rivals that he wants to add the IBO, WBA and WBO belts to his collection.
The 26-year-old is currently the hottest property in boxing and he won his first heavyweight title in April when he claimed a second-round KO of American Charles Martin.
Next up for the superstar, whose record is (16-0, 16 KOs), is his first title defence against Dominic Breazeale on June 25 at the O2.
Joshua, though, admits his long-term goal is to capture the three other heavyweight belts as well, but in order for him to do that, he will need to take on the winner of the July 9 fight between IBO/WBA/WBO heavyweight champion Tyson Fury and Wladimir Klitschko.
"I'm pretty satisfied with how far I've come – but I'm nowhere near where I want to be," he is quoted as saying by Britain's the Daily Star.
"Everything that's happened since turning pro has been designed to end with me as the unified heavyweight champion of the world.
"I don't feel that I've even scratched the surface of what I can achieve and that's why when I beat Charles Martin I didn't celebrate wildly because I've only had one world title fight, one world title win and one world title belt.
"I want all the belts and I know that there is a lot of work to be done to get there, but I've got a great team behind me and I think that I will get there."