December 22, 1991.- Mexican Ricardo Lopez, one of the few retired unbeaten champions, defeated South Korean Kyung Yung Lee by decision. The fight took place in Seoul, South Korea. With thus victory “Finito” defended his WBC straw-weight championship. The Referee was Australian Malcolm Bulner. The Judges were Anek Hongkongkam, Nicolas Hidalgo and Dalby Shirley.