| U21 EURO 1994 France - Appearances as Referee |  |
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| 19/04/1994 | Italy | - | Portugal | 1:0 aet | - | - | - |
| U21 EURO 1994 France - Appearances as Referee | |
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| 19/04/1994 | Italy | - | Portugal | 1:0 aet | - | - | - |
| Complete name: | Serge Muhmenthaler |
| Born: | 20/05/1953 |
| Place of birth: |
Grenchen, 
Switzerland |
| Nationality: |
Switzerland |
| Bundesliga (GER) appearances: | 4 |