| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| GK | Anthony Moris | 1990-04-29 | 184 | 75 | 2017 | ||
| D | Aleksandar Bjelica | 1994-01-07 | |||||
| D | Sheldon Bateau | 1991-01-29 | 186 | ||||
| D | Victor Wernersson | 1995-07-06 | 180 | 69 | 2020-12-31 | ||
| D | Vladimir Volkov | 1986-06-06 | 185 | 80 | |||
| M | Ibrahima Cisse | 1994-01-28 | 181 | 2020-06-30 |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 30.Aug | Victor Wernersson (D) | IFK Göteborg | KV Mechelen | Confirmed | |
| 30.Jun | Gustav Engvall (F) | Bristol City | KV Mechelen | Confirmed | |
| 11.Jul | Jean-François Gillet (GK) | KV Mechelen | Standard Liège | Confirmed | |
| 30.Jun | Vladimir Volkov (D) | Lech Poznan | KV Mechelen | Confirmed | |
| 30.Jun | Sheldon Bateau (D) | Krylya Sovetov Samara | KV Mechelen | Confirmed | |
| 10.Jun | Ibrahima Cisse (M) | KV Mechelen | Standard Liège | Confirmed | |
| 7.Oct | Viktor Prodell (F) | KV Mechelen | IF Elfsborg | Confirmed | |
| 26.Aug | Sheldon Bateau (D) | KV Mechelen | Krylya Sovetov Samara | Confirmed | |
| 19.Jun | Thomas Enevoldsen (M) | KV Mechelen | Aalborg BK | Confirmed | |
| 17.Jun | Thomas Enevoldsen (M) | KV Mechelen | Aalborg BK | Rumour |