| 7. Round | 10/09/1988 | RSC Anderlecht | - | RFC Liège | 1:0 | ||||
| 12. Round | 09/10/1988 | RFC Liège | - | KSK Beveren | 1:0 | ||||
| 13. Round | 22/10/1988 | Cercle Brugge | - | RFC Liège | 1:1 | ||||
| 15. Round | 19/11/1988 | RWD Molenbeek | - | RFC Liège | 1:3 | ||||
| 16. Round | 27/11/1988 | RFC Liège | - | KRC Mechelen | 7:1 | ||||
| 17. Round | 03/12/1988 | K. Beerschot VAV | - | RFC Liège | 1:0 | ||||
| 31. Round | 15/04/1989 | KRC Genk | - | RFC Liège | 0:1 | ||||
| 32. Round | 23/04/1989 | RFC Liège | - | RWD Molenbeek | 1:1 | ||||
| 33. Round | 06/05/1989 | KRC Mechelen | - | RFC Liège | 1:1 |
Belgium