The Chisora grudge is clearly promotional propaganda whereas there was some real bad blood for the Harrison fight.
I don't know. People seem to forget that Haye was once Audley's young prodigy coming through and learning from the master only for Haye to **** him over big time and refuse to let A-Force even fight on his shows for free on the undercard. It was a bit like what Fletcher did to Joesy Wales.