Tyson Fury believes Anthony Joshua is 'finished' after his shock defeat to Andy Ruiz Jr.
Joshua was knocked down four times by the Mexican before he was eventually stopped in the seventh round of the Madison Square Garden bout on June 1.
The formerly unbeaten champion has triggered a rematch clause in a bid to regain his WBA, WBO and IBF titles, but Joshua believes he will find it hard to come back from the defeat.
“When a man doesn’t want to be there once, he will always do it and it’s hard to come back from,” Fury told BBC Sport.
"He did it that night and I don’t think he will come back from it. Finished. Ask any top trainer who has been around the sport a lifetime. When he got to the ring I saw he didn’t want to be there."
Fury, who will continue his comeback against Tom Schwarz in Las Vegas on Saturday, had previously been offered the opportunity to fight Joshua but he remains confident that he would have little trouble in beating his compatriot.
“Everybody thought that man could beat me. In what world could he ever beat me? What were people seeing? I don’t know what people were looking at as I don’t know in what world he could have beaten me," he added.
"Boxing isn’t rocket science and today people are trying to make it a scientist thing. If you can fight, you can fight, if you can’t, you can forget about it. You can eat every protein bar in the world, when you get banged on the chin and panic, it don’t really help you much.
“People who don’t understand boxing look at a fat man and think he can’t fight. The best feeling I got from it was the two best conditioned fighters in the last 20 years have been [Wladimir] Klitschko and Joshua and they both got done by two fat men.”
Schwarz is unbeaten in 24 fights and, while he has been written off by many, Fury is expecting a tough fight at the MGM Grand on Saturday.
"Any man who is unbeaten and his full life changes with a win, I don't take that as an easy fight," added Fury.
"All it takes is one or two punches. That is all it takes. If you're 12 rounds ahead and get knocked out it's pointless. So I am not convinced it's easy."
Fury v Schwarz on Saturday, 15 June is live on BT Sport Box Office. To subscribe www.eirsport.ie/ppv
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