Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/1999 |  | Christophe Horlaville | FW |  | Port Vale FC | Port Vale FC |
| 10/1998 |  | Michele Padovano | FW |  | Crystal Palace | Cr. Palace |
| 08/1998 |  | Nenad Jestrović | FW |  | SC Bastia | Bastia |
| 07/1998 | | Mickaël Menetrier | GK | |||
| 07/1998 | | Sylvain Marchal | DF | |||
| 07/1998 | | David Régis | DF |  | Karlsruher SC | Karlsruhe |
| 07/1998 | | Sebastien Schemmel | DF |  | AS Nancy Lorraine | AS Nancy |
| 07/1998 | | Vinh Long Willemin | DF | |||
| 07/1998 | | Ludovic Asuar | MF |  | Olympique de Marseille | Marseille |
| 07/1998 | | Stéphane Boulila | MF |  | Le Mans FC | Le Mans |
| 07/1998 | | Youns Diani | MF |  | FC Metz B | FC Metz (CFA) |
| 07/1998 |  | Nasrédine Kraouche | MF | |||
| 07/1998 | | Christophe Le Grix | MF |  | FC Lorient | Lorient |
| 07/1998 | | Franck Rizzetto | MF |  | Montpellier HSC | Montpellier |
| 07/1998 |  | Gunther Van Handenhoven | MF |  | KAA Gent | Gent |
| 07/1998 |  | Djima Oyawole | FW | | FC Lorient | Lorient |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/1999 | | Djima Oyawole | FW |  | ES Troyes AC | ES Troyes AC |
| 01/1999 | | Louis Saha | FW |  | Newcastle United | Newcastle |
| 01/1999 | | Christophe Le Grix | MF | | FC Lorient | Lorient |
| 01/1999 | | Bruno Rodriguez | FW |  | Paris Saint-Germain | Paris SG |
| 12/1998 |  | Mihály Tóth | FW |  | Club Africain | CA |
| 07/1998 | | Christophe Eggimann | GK |  | Olympique de Valence (old) | Olymp. Valence |
| 07/1998 | | Stéphane Leoni | DF |  | Bristol Rovers | Bristol Rov. |
| 07/1998 | | Stéphane Morisot | DF | | ES Troyes AC | ES Troyes AC |
| 07/1998 | | Cyril Serredszum | DF | | Montpellier HSC | Montpellier |
| 07/1998 |  | Rigobert Song | DF |  | US Salernitana 1919 | Salernitana |
| 07/1998 | | Jocelyn Blanchard | MF |  | Juventus | Juventus |
| 07/1998 |  | Moussa Latoundji | MF |  | Energie Cottbus | Cottbus |
| 07/1998 | | Robert Pirés | MF | | Olympique de Marseille | Marseille |
| 07/1998 | | Stéphane Roda | MF |  | FC Gueugnon | Gueugnon |