Olympic gold medalist and five-time world champion Leonard has done what retired fighters just don't do. He's crossed over from the exploited to the exploiter. He has become a boxing promoter. But Leonard isn't much like the parasitic thugs who control professional pugilism. He says he wants to make boxing shows more competitive instead of producing snoozers staged to build up the records of contenders. In two programs so far this year at the American Airlines Arena, both televised on ESPN2, Sugar Ray Leonard Boxing delivered two IBA world-title fights, including Roy Jones, Jr.'s first-ever bout in Miami, and some quality undercard bouts. You can't give Leonard all the credit for raising the boxing profile in Miami. The first fight program at the AAA -- Don King's Felix Trinidad-Mamadou Thiam matchup in July 2000 -- sold out, and the regular televised shows at Miccosukee Indian Gaming aren't all bad. Some sportswriters are saying Miami is making a comeback as a major fight venue. And the presence of Leonard, who recently signed Miami-based Cuban star Diobelys Hurtado, is definitely a catalyst.