Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2021 |  | Louis Utzinger | GK | |||
| 07/2021 | | Sahrane Ilihem | MF | |||
| 07/2021 | | Malle Camara | FW |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2021 |  | Yohan Bopaka | GK |  | Stade de Reims U17 | Stade Reims U17 |
| 07/2021 | | Wyssem Aagaou | DF |  | FC Mulhouse U17 | U17 |
| 07/2021 | | Anas Assmy | DF | | FC Mulhouse U17 | U17 |
| 07/2021 | | Nathan Macnar | MF | | FC Mulhouse U17 | U17 |
| 07/2021 | | Nima Sherpa | MF | | FC Mulhouse U17 | U17 |
| 07/2021 | | Livio De Acetis | FW | | FC Mulhouse U17 | U17 |