David Haye says Anthony Joshua does not have the knowledge to beat him but is already capable of taking Tyson Fury's titles.
Joshua (16-0-KO16) became IBF world heavyweight champion on April 9 when he blasted Charles Martin aside in two rounds, and will make his first defence against unbeaten American Dominic Breazeale (17-0-KO15) on June 25.
The Londoner is already engaged in social media jousting with WBA Super and WBO world champion Fury as talk of a unification clash between the pair gathers pace - and Haye believes that will open up the possibility of challenging Joshua for at least three belts next year.
Haye (27-2-KO25) told Sky Sports: "I think he's ready for Tyson Fury right now. If you look at Fury's style, he's very loose and not very fast or agile.
"Joshua has already beaten him up in sparring. You've only got to go on YouTube and look at the comments of Fury talking about getting beaten up by a young Joshua.
"That was when Joshua was an amateur; a novice. If you can beat a seasoned professional up then, now that Joshua himself is a professional I don't think Fury has a shot in hell.
"Joshua is a 16-fight novice who happens to have the IBF championship of the world. It's fair he wants to gain some experience and not jump into super-fights straight away. Hopefully, he'll face Fury if Fury beats Wladimir Klitschko in July.
"Hopefully, Joshua could unify the titles there and when him and his team feel he's ready and it's worthwhile, I'd love the opportunity to get in there because I believe I could beat him.
"Although he's the champion, he's not the finished article. The foundations are clearly there and he's on the right track. Some smart match-making in the right fights at the right time will allow him to get these big fights and mega pay days.
"Realistically, I don't see him wanting to jump in the ring with me any time soon. He needs experience first and maybe go a few rounds with somebody."
Haye, 35, returned to the sport after a three-and-a-half-year absence by halting Mark de Mori in January and continues his campaign for a return to world level by facing the unbeaten Arnold Gjergjaj (29-0-KO21) at The O2 on May 21.
On the undercard on the night will be former world champion Shannon Briggs, who Haye has promised to fight next if both come through their bouts.
For tickets to #HayeDay visit theo2.co.uk.