As much as it may help his mental state (or eat away at it :P), he took a LOT of physical punishment in those fights (as miles pointed out, he had to dig deep to even make it to the championship rounds). While he may stick around for a bit longer, I'm not sure he'll still be able to compete at the super-elite level.
I'm a big Cotto fan and if the accusations about Pacquiao are true (or even if they are left unproven - like Margarito's gloves), it'll absolutely crush my faith in the sport. Unless things change drastically, professional boxing will probably loose a fan in me.
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