I'll be placing a small wager on Castillo. Mayweather is an excellent fighter, but he is stepping up in weight to face a guy with 40 knockouts to his credit. Also, Floyd has battled problems with his hands over the course of his career. Castillo will not be afraid to slug it out. Mayweather may be able to win with his speed but this fight is a good deal closer than 3-1.
