The one thing Juan has as an advantage going into this fight is that he is that he is more sure of himself than any of Floyds recent opponents. Most of Floyds opponents went into their fights without a full belief in themselves. Oscar, Zab, Mitchell, Hatton, all had mental weaknesses imo that greatly impacted their performance. After all, boxing is 85-90% mental. Juan doesnt have any weakness in this area, and that will show in the fight. It is rare that you have a fight between two guy who are tough as mentally as Marquez and Floyd. Whenever this happens, you usually get a competitive fight. Mental toughness can go a long way. Just look at last weeks Urango-Bailey fight. No one has ever questioned Juans chin cause we all know what happens when he is hurt or knocked down...he comes back.