| Champions League 1990/1991 - Appearances as Referee |  |
 |
 |
||||
| 18/09/1990 | TJ Sparta Praha | - | Spartak Moskva | 0:2 | - | - | - |
| Champions League 1990/1991 - Appearances as Referee | |
|
|
||||
| 18/09/1990 | TJ Sparta Praha | - | Spartak Moskva | 0:2 | - | - | - |
| Complete name: | Serge Muhmenthaler |
| Born: | 20/05/1953 |
| Place of birth: |
Grenchen, 
Switzerland |
| Nationality: |
Switzerland |
| Bundesliga (GER) appearances: | 4 |