Heavyweight contender Tyson Fury says former champion Anthony Joshua is “finished” following his shock defeat to Andy Ruiz Jr earlier this month.
‘AJ’ lost the IBF, WBA and WBO titles on June 1 in New York in one of the biggest upsets in boxing history.
Fury was initially supportive towards his fellow Brit, tweeting after the fight that Joshua should "rest up, recover, regroup and come again". However, this week the ‘Gypsy King’ took a more hard-line stance when talking to the BBC.
"When a man doesn't want to be there once, he will always do it and it's hard to come back from,” explained Fury.
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"It's been done many different times by many different fighters. 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."
Joshua, 29, whose defeat against Ruiz was the first of his career, had previously made Fury an offer to fight.
"Everybody thought that man could beat me," said Fury. "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."
Fury added that body shape was no indicator of success in boxing, with the notably overweight Ruiz getting the better of the ultra-fit Joshua.
"Physically Joshua could out-train everyone," said the 30-year-old, who is preparing to fight Germany's Tom Schwarz in Las Vegas on Saturday.
"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."