Personally i dont know if theres legal boundaries that must be adhered to but after negotiations are finished and a fight has either be signed or is not gonna happen there should be an intermediate party on hand who can publisise the true contract negotiations. That way no one can hide behind lies of the negotiations and i think it would lead to more big fights being made.
so pretty much every contract law in the world should be broken show we know what the Klitsckos offered Haye???
No contract in sports or otherwise are fully public. I dont think it should. I think what makes (or not) big fights is money. It's a business and if the money is there, the fight will be made. Of course sometimes it's not that simple, but usualy it is.