Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 02/2013 |  | Emmanuel Vallance | PH-C |  | FC Metz B | FC Metz (CFA) |
| 01/2013 |  | Chris Philipps | DF | | FC Metz B | FC Metz (CFA) |
| 01/2013 |  | Maxwel Cornet | FW |  | FC Metz U19 | FC Metz U19 |
| 08/2012 | | Ali Bamba | DF |  | Le Mans FC | Le Mans |
| 07/2012 | | Guillaume Cappa | GK | | FC Metz B | FC Metz (CFA) |
| 07/2012 | | Johann Carrasso | GK |  | AS Monaco | AS Monaco |
| 07/2012 | | Gaëtan Bussmann | DF |  | SAS Épinal | Épinal |
| 07/2012 |  | Nicolás Cherro | DF |  | Atlanta | Atlanta |
| 07/2012 | | Romain Inez | DF |  | LB Châteauroux | Châteauroux |
| 07/2012 | | Michel Lê | DF | |||
| 07/2012 | | Erwan Martin | DF | |||
| 07/2012 | | Guido Milán | DF | | Atlanta | Atlanta |
| 07/2012 |  | Abdallah N'Dour | DF | | FC Metz U19 | FC Metz U19 |
| 07/2012 |  | Albert Baning | MF | |||
| 07/2012 | | Olivier Cassan | MF |  | FC Martigues | FC Martigues |
| 07/2012 |  | Ahmed Kashi | MF | | LB Châteauroux | Châteauroux |
| 07/2012 | | Kévin Lejeune | MF |  | Tours FC | Tours FC |
| 07/2012 | | Grégory Proment | MF |  | SM Caen | SM Caen |
| 07/2012 | | Thibault Bourgeois | FW | | FC Martigues | FC Martigues |
| 07/2012 | | Moussa Gueye | FW |  | Sporting Charleroi | Charleroi SC |
| 07/2012 | | Diafra Sakho | FW |  | US Boulogne | US Boulogne |
| 07/2012 | | Albert Cartier | MA | |||
| 07/2012 |  | José Jeunechamps | AS-CO | |||
| 07/2012 | | Christophe Marichez | GK-CO | | FC Metz U19 | FC Metz U19 |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 02/2013 | | Mamadou Wagué | MF |  | Debreceni VSC | Debrecen |
| 08/2012 | | Sadio Mané | MF |  | RB Salzburg | RB Salzburg |
| 07/2012 | | Siegfried Aissi Kede | GK |  | Jura Sud | Jura Sud |
| 07/2012 | | Joris Delle | GK |  | OGC Nice | Nice |
| 07/2012 |  | Oumar Sissoko | GK |  | AC Ajaccio | AC Ajaccio |
| 07/2012 |  | Bruce Abdoulaye | DF |  | Şamaxı FK | Şamaxı |
| 07/2012 | | Gauthier Bernardelli | DF |  | CSO Amnéville | CSO Amnéville |
| 07/2012 | | Stéphane Besle | DF |  | FC St. Gallen | St.Gallen |
| 07/2012 | | Teddy Kayombo | DF | | Tours FC | Tours FC |
| 07/2012 | | Kalidou Koulibaly | DF |  | KRC Genk | KRC Genk |
| 07/2012 | | Adama Tamboura | DF |  | Randers FC | Randers FC |
| 07/2012 |  | Hamadi Ayari | MF |  | Grenoble Foot 38 | Grenoble |
| 07/2012 | | Yohan Betsch | MF |  | Stade Lavallois | Laval |
| 07/2012 | | Pierre Bouby | MF |  | Nîmes Olympique | Nîmes |
| 07/2012 | | Kévin Diaz | MF | | OGC Nice | Nice |
| 07/2012 |  | David Fleurival | MF |  | SC Beira-Mar | SC Beira-Mar |
| 07/2012 | | Ludovic Guerriero | MF | | LB Châteauroux | Châteauroux |
| 07/2012 | | Oumar Pouye | MF |  | Amiens SC | Amiens |
| 07/2012 | | Thierry Steimetz | MF |  | F91 Dudelange | F91 Dudelange |
| 07/2012 | | Mahamane Traoré | MF | | OGC Nice | Nice |
| 07/2012 | | Andy Delort | FW | | AC Ajaccio | AC Ajaccio |
| 07/2012 | | Mathieu Duhamel | FW | | SM Caen | SM Caen |
| 07/2012 |  | Kwame Nsor | FW |  | 1. FC Kaiserslautern | K'lautern |