Taylor's cut

I think that everyone saw Taylor slowing by the end 4 or 5 rounds of the fight but does anyone agree that a major reason for his exhaustion was maybe the cut on his head? Anyone that has ever boxed knows that you lose enough fluids when you are not cut and the cut on Taylors head was in a terrible place and bled pretty much from the time of the gash on. Thats a lot of blood to lose for a guy thats A) never been cut before and B) constantly having to be the agressor. Ive been cut before when i fought and it seriously drained not only my energy but my will to fight. I think, honestly, that Hopkins could not have come back the way he did if his head hadnt proved so damn abrasive (although he still clearly lost and anyone who scored the fight for him in my oppinion must be crazy). Anyway I dont know if there are other threads on this because i havent looked back more than like a day but does anyone else have any thoughts on this?