| Super League 1990/1991 Abstieg Gruppe A - Appearances as Referee |  |
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| 20/04/1991 | FC Chiasso | - | FC Basel | 0:0 | - | - | - |
| Super League 1990/1991 Abstieg Gruppe A - Appearances as Referee | |
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| 20/04/1991 | FC Chiasso | - | FC Basel | 0:0 | - | - | - |
| Complete name: | Oswald Gritsch |
| Born: | 06/10/1946 |
| Place of birth: |
Liechtenstein |
| Nationality: |
Liechtenstein |