Late 80s/very early 90s Foreman would have clobbered any version of Tyson, for not talking about the 70s young prime one, would punch him off the planet, slow my ass... Now, Tyson was great admittedly, would have beat Ali easy, but clearly not the greatest (no one is) and massively overrated, he had a short peak and strange career... Against 45-47yo super slow Foreman yeah, a not shot Tyson would take an easy UD probably, but all the other versions are a nightmare for him, including the fresh comeback one...