| Champions League 1993/1994 - Appearances as Referee |  |
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| 15/09/1993 | Werder Bremen | - | Dinamo Minsk | 5:2 | 2 | - | - |
| 02/11/1993 | CSA Steaua București | - | AS Monaco | 1:0 | 3 | - | - |
| 15/03/1994 | FC Barcelona | - | Spartak Moskva | 5:1 | - | - | - |
| Champions League 1993/1994 - Appearances as Referee | |
|
|
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| 15/09/1993 | Werder Bremen | - | Dinamo Minsk | 5:2 | 2 | - | - |
| 02/11/1993 | CSA Steaua București | - | AS Monaco | 1:0 | 3 | - | - |
| 15/03/1994 | FC Barcelona | - | Spartak Moskva | 5:1 | - | - | - |
| Complete name: | Serge Muhmenthaler |
| Born: | 20/05/1953 |
| Place of birth: |
Grenchen, 
Switzerland |
| Nationality: |
Switzerland |
| Bundesliga (GER) appearances: | 4 |