Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 02/2004 |  | Carlos Merino | MF |  | Athletic Club | Athletic |
| 02/2004 | | Xisco Nadal | FW |  | Villarreal CF | Villarreal |
| 01/2004 | | Mikel Alonso | MF |  | Real Sociedad | Real Sociedad |
| 01/2004 | | Juan Pedro | DF |  | Xerez CD | Xerez |
| 07/2003 | | Juan José Carretero | AS-CO | |||
| 07/2003 | | Antonio | DF | | Xerez CD | Xerez |
| 07/2003 | | Casado | DF |  | Getafe CF | Getafe |
| 07/2003 | | Cortés | DF | |||
| 07/2003 | | Saavedra | DF |  | Real Oviedo | Oviedo |
| 07/2003 | | Juan Navarro | MF |  | CD Castellón | CD Castellón |
| 07/2003 | | Moreno | MF |  | Terrassa FC | Terrassa FC |
| 07/2003 | | Pulido | MF |  | CD Leganés | Leganés |
| 07/2003 | | Toril | MF |  | Racing Ferrol | Racing Ferrol |
| 07/2003 | | Chota | FW |  | Levante UD | Levante |
| 07/2003 | | Pineda | FW | | Xerez CD | Xerez |
| 07/2003 | | Quique Hernández | MA |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 02/2004 | | Chota | FW |  | Hércules CF | Hércules |
| 01/2004 | | Saavedra | DF |  | ADO Den Haag | ADO Den Haag |
| 07/2003 | | Carlos Cuéllar | DF |  | CA Osasuna | Osasuna |
| 07/2003 |  | Diego Jaume | DF |  | Defensor Sporting | Defensor |
| 07/2003 | | Manolo Sánchez | DF |  | Celta de Vigo | Celta de Vigo |
| 07/2003 | | Unai Expósito | DF | | CA Osasuna | Osasuna |
| 07/2003 | | Bravo | MF |  | Burgos CF | Burgos CF |
| 07/2003 |  | Claudio Marini | MF | | CD Leganés | Leganés |
| 07/2003 | | Aranda | FW |  | Albacete | Albacete |
| 07/2003 |  | André Lindbæk | FW |  | Viking FK | Viking |
| 07/2003 | | Perico Ojeda | FW |  | Juventud Unida Universitario | Juventud Unida Universitario |
| 07/2003 |  | Patrick Suffo | FW |  | Coventry City | Coventry |