| No. | Nombre | País | Posición |
|---|---|---|---|
| 2 | Keita, Zoumana | Mali | Defensa |
| 3 | Hey, Lucas | Dinamarca | Defensa |
| 4 | Angély, Mathys | Francia | Defensa |
| 6 | Augustinsson, Ludwig | Suecia | Defensa |
| 7 | Camara, Ilay | Bélgica | Defensa |
| 9 | Cvetkovic, Mihajlo | Serbia | Delantero |
| 10 | Verschaeren, Yari | Bélgica | Centrocampista |
| 11 | Hazard, Thorgan | Bélgica | Centrocampista |
| 13 | Saliba, Nathan-Dylan | Canadá | Centrocampista |
| 14 | Sikan, Danylo | Ucrania | Delantero |
| 15 | Ilic, Mihajlo | Serbia | Defensa |
| 21 | Huerta, César | México | Delantero |
| 22 | Dao, Elyess | Francia | Delantero |
| 23 | Rits, Mats | Bélgica | Centrocampista |
| 24 | Llansana, Enric | Países Bajos | Centrocampista |
| 26 | Coosemans, Colin | Bélgica | Portero |
| 29 | Stroeykens, Mario | Bélgica | Centrocampista |
| 32 | Heekeren, Justin | Alemania | Portero |
| 54 | Sardella, Killian | Bélgica | Defensa |
| 55 | Kana, Marco | Bélgica | Centrocampista |
| 62 | Vroninks, Basile | Bélgica | Defensa |
| 63 | Vanhoutte, Timon | Bélgica | Portero |
| 71 | Engwanda, Nunzio | Bélgica | Defensa |
| 74 | De Cat, Nathan | Bélgica | Centrocampista |
| 77 | Da Costa, Coba | Guinea-Bisáu | Delantero |
| 78 | Tajaouart, Anas | Marruecos | Centrocampista |
| 79 | Maamar, Ali | Marruecos | Defensa |
| 83 | Degreef, Tristan | Bélgica | Centrocampista |
| 91 | Bertaccini, Adriano | Bélgica | Delantero |
| 93 | Diarra, Moussa | Mali | Defensa |
| 99 | Kanaté, Ibrahim | Mali | Delantero |
| Nombre | País | Posición |
|---|---|---|
| Ashimeru, Majeed | Ghana | Centrocampista |
| N'Diaye, Moussa | Senegal | Defensa |
| Vazquez, Luis | Argentina | Delantero |
| Goto, Keisuke | Japón | Delantero |
| Flies, Jarne | Bélgica | Centrocampista |
| Hatenboer, Cedric | Países Bajos | Centrocampista |
| Nombre | País | Posición |
|---|---|---|
| Vergeylen, Lilian | Bélgica | Centrocampista |
| Flips, Alexis | Francia | Centrocampista |
| Foket, Thomas | Bélgica | Defensa |
| Sternal, Enzo | Francia | Delantero |
| Onia Seke, Jayden | Bélgica | Delantero |
| Barry, Kaïs | Bélgica | Defensa |
| Sylla, Gassimou | Bélgica | Delantero |
| Wola-Wetshay, Ludovick | Congo | Defensa |
| Haentjens, Michiel | Bélgica | Portero |
| De Corte, Devon | Bélgica | Centrocampista |
| Ntanda-Lukisa, Samuel | Congo | Delantero |
| Nombre | País |
|---|---|
| Coucke, Marc | Bélgica |
| Hasi, Besnik | Albania |
| Nombre | Importe | Club |
|---|---|---|
| Hatenboer, Cedric | 2.500.000 | Excelsior |
| Cvetkovic, Mihajlo | 3.200.000 | Cukaricki |
| Keita, Zoumana | 500.000 | Viktoria Köln |
| Saliba, Nathan | 2.000.000 | Montreal Impact |
| Llansana, Enric | 1.000.000 | Go Ahead Eagles |
| Camara, Ilay | 4.500.000 | Standard |
| Bertaccini, Adriano | 5.200.000 | STVV |
| Ilic, Mihajlo | Loan | Bologna |
| Imbrechts, Joachim | 0 | Union |
| Heekeren, Justin | 500.000 | Schalke 04 |
| Sikan, Danylo | 4.000.000 | Trabzonspor |
| Diarra, Moussa | Loan | Alaves |
| Da Costa, Coba | Loan | Getafe |
| Angély, Mathys | Loan | Wolfsburg |
| Nombre | Importe | Club |
|---|---|---|
| Patris, Louis | 1.750.000 | STVV |
| Vertonghen, Jan | End of career | |
| Edozie, Samuel | End of loan | Southampton |
| Dendoncker, Leander | End of loan | Aston Villa |
| Adryelson, Shawann Lima Silva | End of loan | Lyon |
| Robberechts, Milan | End of loan | Patro Eisden (via Fortuna Sittard) |
| Moutha-Sebtaoui, Nail | FC Dender | |
| Montegnies, Lars | RAEC Mons | |
| Baouf, Ismaël | Cambuur Leeuwarden | |
| Leoni, Theo | 600.000 | Stade Reims |
| Dolberg, Kasper | 10.000.000 | Ajax |
| Kikkenborg, Mads | 400.000 | Molde FK |
| Vergeylen, Lilian | FC Knokke | |
| Özcan, Yasin | End of Loan | Besiktas (via Aston Villa) |
| Angulo, Nilson | 18.000.000 | Sunderland |
