Just a thought. A mixed bunch,were n't they ?
Lennox Lewis gets knocked out by a moderate fighter,Oliver McCall. McCall then gets taken to the verge of defeat by an ancient Larry Holmes. Michael Moorer gets sparked by an even more ancient George Foreman.
Could you envisage something like that happening in the seventies,for example ? Ancient versions of Foreman and Holmes even being competitive with,let alone winning,against their younger selves or Muhammad Ali and Joe Frazier ?