 In the tenth round Margarito responded to the bell but following the first seconds of the round the ringside doctor declared that he could not continue further.The result of the fight was decided by the scores of the judges, awarding Santos a victory by technical decision.On June 28, 2003 he defended against Fulgencio Zúñiga in a card that took place in the Ruben Rodriguez Coliseum in Bayamón, Puerto Rico.