Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/1998 |  | Grégory Wimbée | GK |  | AS Cannes | AS Cannes |
| 07/1998 | | Mo Camara | DF |  | Havre AC | HAC |
| 07/1998 |  | Riad Hammadou | DF | |||
| 07/1998 |  | Adick Koot | DF | | AS Cannes | AS Cannes |
| 07/1998 | | Frédéric Viseux | DF |  | FC Sochaux | Sochaux |
| 07/1998 | | Geoffrey Dernis | MF | |||
| 07/1998 | | Charles Diers | MF | |||
| 07/1998 |  | Neném | MF | |||
| 07/1998 | | Stéphane Noro | MF |  | Lille OSC U19 | Lille OSC U19 |
| 07/1998 | | Rudy Giublesi | FW | |||
| 07/1998 | | Olivier Pickeu | FW |  | Amiens SC | Amiens |
| 07/1998 | | Jean-Louis Valois | FW |  | FC Gueugnon | Gueugnon |
| 07/1998 |  | Vahid Halilhodžić | MA |  | Raja Casablanca | Raja CA |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 05/1999 | | Franck Renou | MF |  | Aberdeen FC | Aberdeen |
| 12/1998 | | Samuel Lobé | FW |  | ES Troyes AC | ES Troyes AC |
| 07/1998 | | Jean-Marie Aubry | GK |  | AS Monaco | AS Monaco |
| 07/1998 | | Jérémy Horrent | GK |  | JA Armentières | JA Armentières |
| 07/1998 | | Cédric Carrez | DF |  | OGC Nice | Nice |
| 07/1998 | | Franck Turpin | DF |  | USL Dunkerque | USL Dunkerque |
| 07/1998 | | Nicolas Houy | MF | | JA Armentières | JA Armentières |
| 07/1998 |  | Stephan Van Der Heyden | MF |  | Roda JC Kerkrade | Roda JC |
| 07/1998 | | Denis Abed | FW |  | Wasquehal FC | Wasquehal FC |
| 07/1998 | | Emmanuel Coquelet | FW | | Amiens SC | Amiens |
| 07/1998 | | Frédéric Machado | FW |  | Olympique de Valence (old) | Olymp. Valence |