Five months to the day after professional boxing made its debut at MCI Center, the sweet science will return to the site with a Showtime-televised card Sept. 24 that will include Washington area champions William Joppy, Sharmba Mitchell and Keith Holmes.

Joppy (27-1-1), the World Boxing Association middleweight title holder, will meet Julio Cesar Green (25-3) for the third time in the main event. Joppy and Green have split their two fights, with Joppy winning the last meeting by decision in January 1998.

Joppy-Green III was originally scheduled for last February at the D.C. Convention Center but was scratched when Joppy fractured a vertebrae in an automobile accident two weeks before the fight. Joppy, from Silver Spring, has fought just once since, stopping Napoleon Pitt in a non-title fight last month.

"We're looking forward to this fight [Joppy-Green] finally taking place," said Bobby Goodman, vice president of boxing operations for Don King Productions, which is promoting the card. "We had some scheduling issues with Showtime, but we've reserved the date with the MCI Center and have worked out most of the details to have everything in place."

Takoma Park's Mitchell (45-2), the WBA's 140-pound champion, will defend his title against third-ranked contender Elio Ortiz (17-3). No opponent has been named yet for Holmes (33-2), who reclaimed his World Boxing Council middleweight title from Hassine Cherifi on April 24 at MCI Center.