Question: The light heavyweight champion Ronald Johnson is known for fighting and promoting big boxing events that featured which Cuban American former professional boxer who won a gold medal as an amateur at the 1992 Olympics?
Sentence (from "Joel Casamayor"): He is a two-weight world champion, having held the WBA super featherweight title from 2000 to 2002; and the WBC, "Ring" magazine, and lineal lightweight titles between 2006 and 2008.
Relevant evidence: No