Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 02/2004 |  | Rojo | MA | |||
| 01/2004 | | Roberto | MF |  | Real Murcia | Murcia |
| 01/2004 |  | Sebastián Saja | GK |  | Brescia Calcio | Brescia |
| 01/2004 | | Paco Jémez | DF |  | Real Zaragoza | Zaragoza |
| 11/2003 | | Roberto D'Alessandro | MA | |||
| 07/2003 | | Fernando López | GK |  | Livingston FC | Livingston |
| 07/2003 | | Serna | GK | |||
| 07/2003 | | Amaya | DF | |||
| 07/2003 | | Bravo | DF |  | Málaga CF | Málaga |
| 07/2003 | | Cavas | DF |  | Elche CF | Elche CF |
| 07/2003 | | Iván Ania | DF |  | CD Tenerife | Tenerife |
| 07/2003 | | Pulido | DF |  | Sporting Gijón | Sporting Gijón |
| 07/2003 | | Xavi Roca | DF |  | RCD Espanyol | RCD Espanyol |
| 07/2003 | | Crusat | MF | | RCD Espanyol | RCD Espanyol |
| 07/2003 | | Iñigo Idiakez | MF |  | Real Oviedo | Oviedo |
| 07/2003 | | David Palacios | MF |  | Cádiz CF | Cádiz |
| 07/2003 |  | Ivan Tomić | MF |  | CD Alavés | Alavés |
| 07/2003 |  | Jorge Valdivia | MF |  | Universidad de Concepción | Universidad de Concepción |
| 07/2003 | | Leonardo Biagini | FW |  | RCD Mallorca | Mallorca |
| 07/2003 | | Geni | FW | | Real Oviedo | Oviedo |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/2004 | | David Palacios | MF |  | CD Logroñés | CD Logroñés |
| 01/2004 | | Amaya | DF |  | UD SS Reyes | Sanse |
| 01/2004 | | Bravo | DF |  | UD Almería | Almería |
| 08/2003 | | Míchel Sánchez | MF | | Real Murcia | Murcia |
| 07/2003 | | De la Vega | DF |  | RSD Alcalá | RSD Alcalá |
| 07/2003 | | De Quintana | DF | | Cádiz CF | Cádiz |
| 07/2003 | | Dorado | DF | | Sporting Gijón | Sporting Gijón |
| 07/2003 |  | Julio Álvarez | MF | | Real Murcia | Murcia |
| 07/2003 | | Camuñas | MF |  | Ciudad de Murcia | Ciudad de Murcia |
| 07/2003 | | Mauro | MF |  | Pontevedra CF | Pontevedra CF |
| 07/2003 | | Quevedo | MF | | Cádiz CF | Cádiz |
| 07/2003 | | Sergio Mora | MF |  | Hércules CF | Hércules |
| 07/2003 |  | Idan Tal | MF |  | Maccabi Haifa | M. Haifa |
| 07/2003 |  | Elvir Bolić | FW |  | İstanbulspor AŞ | İstanbulspor AŞ |
| 07/2003 | | Antonio Iriondo | MA |  | Rayo Vallecano B | Rayo B |