I agree 100% with hoya, he did not hold all the belts so in the literal sense he was not the undisputed champion, but no one can deny that he was the man at cruiser
IBF only started in 1983 WBC only started in 1963 WBA only started in 1963 The definition of undisputed is obviously evolving. When exactly did the IBF become necessary for undisputed status? The day that it was created? I doubt it...
He beat Mormeck who was old and beat another chump in Bell. The real champ was Steve Cunningham who was beaten by Adamek.
The only reason the IBF strap was not around Haye's waist when he beat Mormeck is bull**** abc politics.
Steve Cunningham annd Guilermo Jones were the best cruiserweights at the time. Of course Haye never wanted no part of them.
From that link: "The WBA refers to a champion who holds two or more titles as an "undisputed champion".