Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/1999 |  | Raúl Gañán | DF |  | CD Alavés | Alavés |
| 01/1999 | | Solaun | MF | | CD Alavés | Alavés |
| 01/1999 | | Pablo Trobbiani | MF |  | Talleres de Córdoba | Talleres |
| 01/1999 |  | Zeferino | FW |  | Real Madrid Castilla | RM Castilla |
| 10/1998 | | Ziarreta | MA |  | SD Gernika | Gernika |
| 09/1998 |  | Fernando D'Amico | MF | |||
| 07/1998 | | Arturo | DF |  | Elche CF | Elche CF |
| 07/1998 |  | Luis Fernando | DF |  | San Lorenzo | CASL |
| 07/1998 | | Eduardo Magnin | DF |  | Huracán | Huracán |
| 07/1998 | | Raúl Ferrer | DF | |||
| 07/1998 | | Sandro | DF |  | Levante UD | Levante |
| 07/1998 | | Villarroya | DF |  | Sporting Gijón | Sporting Gijón |
| 07/1998 | | Javier Artero | MF |  | Málaga CF | Málaga |
| 07/1998 | | David Bisconti | MF |  | Universidad Católica | U. Católica |
| 07/1998 | | Ezequiel Castillo | MF |  | Rayo Vallecano | Rayo |
| 07/1998 | | Gámiz | MF |  | CD Aurrerá de Vitoria | CD Aurrerá de Vitoria |
| 07/1998 | | Alejandro Mancuso | MF |  | Independiente | Independiente |
| 07/1998 | | Martín Romagnoli | MF |  | All Boys | All Boys |
| 07/1998 | | Patricio D'Amico | FW |  | Quilmes | Quilmes |
| 07/1998 | | Mauricio López | FW | | Quilmes | Quilmes |
| 07/1998 | | Sabino | FW | | Málaga CF | Málaga |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/1999 | | Jorge Espeleta | DF |  | Xerez CD | Xerez |
| 01/1999 | | Luis Fernando | DF |  | Belgrano de Córdoba | Belgrano |
| 07/1998 | | Pablo | GK |  | AD Ceuta | ADA Ceuta |
| 07/1998 | | Tocornal | DF |  | CD Lealtad | Lealtad |
| 07/1998 | | Urbano | DF | | Sporting Gijón | Sporting Gijón |
| 07/1998 | | Asian | MF | | Elche CF | Elche CF |
| 07/1998 | | Gerardo | MF |  | Villarreal CF | Villarreal |
| 07/1998 | | Luque | MF |  | Atlético Madrid B | Atlético B |
| 07/1998 | | Patri | MF |  | Sevilla FC | Sevilla |
| 07/1998 | | Quiroga | MF |  | SD Compostela | SD Compostela |
| 07/1998 | | Sala | MF |  | Albacete | Albacete |
| 07/1998 | | Cuxart | FW |  | Real Murcia | Murcia |
| 07/1998 | | Munitis | FW |  | Racing Santander | Racing |
| 07/1998 | | Zuluaga | FW |  | CD Leganés | Leganés |