Tyson Fury believes former world champion Anthony Joshua is “finished” after his shock defeat by Andy Ruiz Jr.
Joshua, 29, gave up his IBF, WBA and WBO titles in a seventh-round stoppage loss to Ruiz in New York on 1 June.
In a wide-ranging interview with BBC Sport before his Las Vegas bout with Tom Schwarz on Saturday, Fury said Joshua did not want to be in the ring.
“When a man doesn’t want to be there once, he will always do it and it’s hard to come back from,” said Fury.
“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.
“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.”
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Joshua’s defeat halted talk of any immediate fight with Fury or WBC champion Deontay Wilder as the 2012 Olympic champion is now intent on fulfilling a rematch with Ruiz.
Fury believes Joshua – who went into the fight undefeated – will lose the repeat fixture.
In referencing Ruiz’s much-publicised fleshy physique and his own win over Wladimir Klitschko in 2015, Fury told 5 Live Boxing’s Mike Costello and Steve Bunce that such results prove “body types mean nothing in boxing”.
“Physically Joshua could out-train everyone,” added Fury, 30. “He would break every heart monitor, has probably worn out every treadmill in the gym, smashes the bag; it’s all very unimportant.
“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 fight 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 Klitschko and Joshua and they both got done by two fat men.”
More to follow.