Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/1999 |  | Belsué | DF |  | Real Zaragoza | Zaragoza |
| 01/1999 |  | Nicola Berti | MF |  | Tottenham Hotspur | Tottenham |
| 01/1999 |  | Pablo Sánchez | MF |  | Feyenoord | Feyenoord |
| 01/1999 | | Julio Salinas | FW |  | Yokohama F. Marinos | Marinos |
| 08/1998 |  | Magno | FW |  | FC Groningen | Groningen |
| 08/1998 | | Morales | MF |  | RCD Espanyol | RCD Espanyol |
| 07/1998 | | Kike | GK |  | RCD Mallorca | Mallorca |
| 07/1998 | | Iván Rocha | DF | | RCD Mallorca | Mallorca |
| 07/1998 | | Josete | DF |  | Real Betis | Betis |
| 07/1998 | | Raúl Gañán | DF |  | Barakaldo CF | Barakaldo CF |
| 07/1998 | | Alex Fernández | MF |  | Sporting Gijón | Sporting Gijón |
| 07/1998 | | Gerard | MF |  | Valencia CF | Valencia |
| 07/1998 | | Solaun | MF |  | CD Logroñés | CD Logroñés |
| 07/1998 | | Canabal | FW |  | Real Valladolid | Valladolid |
| 07/1998 | | Ismael | FW |  | FC Barcelona B | Barcelona B |
| 07/1998 | | Santi Revilla | FW |  | Moralo CP | Moralo CP |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/1999 | | Raúl Gañán | DF |  | CD Badajoz | CD Badajoz |
| 01/1999 | | Morales | MF |  | Hércules CF | Hércules |
| 01/1999 | | Solaun | MF | | CD Badajoz | CD Badajoz |
| 01/1999 | | Ismael | FW | | CD Logroñés | CD Logroñés |
| 01/1999 | | Santi Revilla | FW |  | Badajoz CF | Badajoz CF |
| 07/1998 | | Armando | GK | | Barakaldo CF | Barakaldo CF |
| 07/1998 | | Leal | GK |  | Sevilla FC | Sevilla |
| 07/1998 | | Álex | DF |  | CD Numancia | Numancia |
| 07/1998 | | Dacosta | DF | | Hércules CF | Hércules |
| 07/1998 | | Pedro Alberto | DF |  | CD Toledo | CD Toledo |
| 07/1998 | | Téllez | DF | | Valencia CF | Valencia |
| 07/1998 | | Ángel Luis | MF | | CD Numancia | Numancia |
| 07/1998 | | Codina | FW |  | CD Leganés | Leganés |
| 07/1998 | | Javi Moreno | FW | | CD Numancia | Numancia |
| 07/1998 | | Pedro Riesco | FW |  | CD Ourense | CD Ourense |
| 07/1998 | | Raúl Tamudo | FW | | RCD Espanyol | RCD Espanyol |
| 07/1998 | | Serrano | FW | | RCD Espanyol | RCD Espanyol |