Obviously that was a huge missmatch because a person who is far from his prime shape and with health issues like SIlva, who is not even a K-1 fighter. My opinion is that the only reason he accepted to fight Rico is for money and because he is known and respected in Asia.He had no chance there and the referee also saw that so he stopped the fight at the right moment because Rico was just warming up but Silva was gassed out and just wanted to survive 3 rounds.