Right now, I just don't buy Floyd. I think he knows about Pacman's weakness on blood testing. Pacman's corner should emphasized that they were willing to go for a blood test immediately after the fight. If there there was any PED used during the fight they would have seen it right after. how long does a fight last 2-3 hrs?
They could even have put that at the clause that Pacman should return the money if he will be tested positive right after the fight and overturn any result of the fight in favor of mayweather.