| Champions League Qual. 2017/2018 - Appearances as Referee |  |
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| 19/07/2017 | Celtic FC | - | Linfield FC | 4:0 | 2 | - | - |
| Champions League Qual. 2017/2018 - Appearances as Referee | |
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| 19/07/2017 | Celtic FC | - | Linfield FC | 4:0 | 2 | - | - |
| Complete name: | Stephan Klossner |
| Born: | 30/05/1981 |
| Place of birth: |
Switzerland |
| Nationality: |
Switzerland |