Anthony Joshua is mentally broken and not ready to fight Deontay Wilder, claims heavyweight Manuel Charr.
AJ has reportedly agreed terms to fight Wilder, possibly before the end of the year.
The Brit has bounced back from consecutive defeats to Oleksandr Usyk by beating Jermaine Franklin and Robert Helenius.
But Charr believes Joshua needs more time and more fights to properly prepare for the best heavyweights in the divison, including Wilder.
Charr told Seconds Out as cited by Sports Central: "Right now Joshua is mentally broken, you can see that. "Against Andy Ruiz Jr when he got first knocked out, two losses against Usyk, he looks broken. He needs time. He is not ready for Fury. "He needs five or six easy fights to get back to himself. If he fights Wilder next he can stop boxing after that. He is not ready for Wilder or Fury and not ready for me."
However Eddie Hearn still believes Joshua can become undisputed champion by knocking out Wilder and then Fury.
The promoter admitted he might be slightly deluded but he has faith his fighter will reclaim his world champion status.
But first Hearn must find a venue capable of hosting a blockbuster fight between Joshua and Wilder.
He is eyeing a potential bout at Madison Square Gardens or the Middle East, two places Joshua has fought before.
Hearn has also considered another warm-up fight before taking on Wilder after AJ's proposed grudge match with Dillion Whyte was cancelled..