Hmmmm... I have a hard time believing that one and it's not because Chapo is Puerto Rican. I just don't see how someone who gets hit THAT MUCH would be able to stand up to Rosario's power. I actually think this would end rather brutally for Castillo, in about 8 rounds.
Ramirez stood up to Rosarios power, nearly beat him once and KOd him in the rematch. He wasnt as big or as good as Castillo.
Ramirez had a better chin than Castillo. Castillo would never have gone the distance with Arguello. I was a JL Castillo FAN, as everybody knows, but he's become overrated. If him and Chapo fought 10 times, more often than not Rosario blasts him out of there.