BASEBALL American League * AL -- Suspended Skeeter Barnes, Detroit outfielder, for three games for charging the mound during a game against Seattle on July 22.
National League * LOS ANGELES DODGERS -- Released Juan Samuel, second baseman. Recalled Eric Young, second baseman, from Albuquerque of the Pacific Coast League.
National Basketball Association * NEW JERSEY NETS -- Signed Dan O'Sullivan, center, to a one-year contract.
* PHILADELPHIA 76ERS -- Named Mike Abdenour trainer.
* SAN ANTONIO SPURS -- Signed Vinny Del Negro, guard, to a multiyear contract.
Global Basketball Association * COMMISSIONER'S OFFICE -- Announced the 1992-93 All-Star Game will be held at the Mississippi Coast Coliseum in Biloxi, Miss.