| Europa League 1989/1990 - Appearances as Referee |  |
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| 11/09/1989 | Galatasaray | - | Crvena Zvezda | 1:1 | - | - | - |
| 26/09/1989 | KF Apolonia Fier | - | AJ Auxerre | 0:3 | - | - | - |
| 30/10/1989 | Hamburger SV | - | Real Zaragoza | 2:0 aet | - | - | 2 |
| Europa League 1989/1990 - Appearances as Referee | |
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| 11/09/1989 | Galatasaray | - | Crvena Zvezda | 1:1 | - | - | - |
| 26/09/1989 | KF Apolonia Fier | - | AJ Auxerre | 0:3 | - | - | - |
| 30/10/1989 | Hamburger SV | - | Real Zaragoza | 2:0 aet | - | - | 2 |
| Complete name: | Alphonse Constantin |
| Born: | 17/05/1949 |
| Place of birth: |
Belgium |
| Nationality: |
Belgium |