| Nr. | Player name | Country | Position |
|---|---|---|---|
| 3 | Hey, Lucas | Denmark | Defender |
| 4 | Biancone, Giulian | France | Defender |
| 6 | Augustinsson, Ludwig | Sweden | Defender |
| 7 | Camara, Ilay | Belgium | Defender |
| 9 | Cvetkovic, Mihajlo | Serbia | Striker |
| 13 | Saliba, Nathan-Dylan | Canada | Midfielder |
| 14 | Sikan, Danylo | Ukraine | Striker |
| 18 | Ambros, Lukas | Czech Republic | Midfielder |
| 21 | Huerta, César | Mexico | Striker |
| 22 | Dao, Elyess | France | Striker |
| 24 | Llansana, Enric | Netherlands | Midfielder |
| 26 | Coosemans, Colin | Belgium | Goalkeeper |
| 27 | Pétrot, Léo | France | Defender |
| 29 | Stroeykens, Mario | Belgium | Midfielder |
| 32 | Heekeren, Justin | Germany | Goalkeeper |
| 54 | Sardella, Killian | Belgium | Defender |
| 55 | Kana, Marco | Belgium | Midfielder |
| 78 | Tajaouart, Anas | Morocco | Midfielder |
| 79 | Maamar, Ali | Morocco | Defender |
| 83 | Degreef, Tristan | Belgium | Midfielder |
| 91 | Bertaccini, Adriano | Belgium | Striker |
| 99 | Vazquez, Luis | Argentina | Striker |
| 99 | Hatenboer, Cedric | Netherlands | Midfielder |
| 99 | N'Diaye, Moussa | Senegal | Defender |
| 99 | Ashimeru, Majeed | Ghana | Midfielder |
| Player name | Country | Position |
|---|---|---|
| Kanaté, Ibrahim | Mali | Striker |
| Player name | Country | Position |
|---|---|---|
| Keita, Zoumana | Mali | Defender |
| Foket, Thomas | Belgium | Defender |
| Sternal, Enzo | France | Striker |
| Mujangi Bia, Adjani | Belgium | Midfielder |
| Onia Seke, Jayden | Belgium | Striker |
| Barry, Kaïs | Belgium | Defender |
| Sylla, Gassimou | Belgium | Striker |
| Nga Kana, Joshua | Belgium | Striker |
| Vroninks, Basile | Belgium | Defender |
| Vanhoutte, Timon | Belgium | Goalkeeper |
| De Ridder, Alexander | Belgium | Midfielder |
| Wola-Wetshay, Ludovick | DR Congo | Defender |
| Haentjens, Michiel | Belgium | Goalkeeper |
| Engwanda, Nunzio | Belgium | Defender |
| Ntanda-Lukisa, Samuel | DR Congo | Striker |
| Flies, Jarne | Belgium | Midfielder |
| Flips, Alexis | France | Midfielder |
| Name | Country |
|---|---|
| Coucke, Marc | Belgium |
| Player name | Amount | Club |
|---|---|---|
| Biancone, Giulian | 2.500.000 | Olympiakos |
| Pétrot, Léo | 0 | Elche CF |
| Ambros, Lukas | 5.000.000 | Gornik Zabre |
| Player name | Amount | Club |
|---|---|---|
| Hazard, Thorgan | End of cont | ? |
| Rits, Mats | End of cont | ? |
| Verschaeren, Yari | End of cont | ? |
| Ilic, Mihajlo | End of loan | Bologna |
| Diarra, Moussa | End of loan | Alaves |
| Da Costa, Coba | End of loan | Getafe |
| Angély, Mathys | End of loan | Wolfsburg |
| Goto, Keisuke | 11.000.000 | Freiburg |
| De Corte, Devon | ? | FC Den Bosch |
| De Cat, Nathan | 20.000.000 | TSG Hoffenheim |
