| Europa League 2021/2022 - Appearances as Assistant | ||||
| 16/09/2021 | Rapid Wien | - | KRC Genk | 0:1 |
| 21/10/2021 | PFC Ludogorets Razgrad | - | Sporting Braga | 0:1 |
| Europa League 2021/2022 - Appearances as Assistant | ||||
| 16/09/2021 | Rapid Wien | - | KRC Genk | 0:1 |
| 21/10/2021 | PFC Ludogorets Razgrad | - | Sporting Braga | 0:1 |
| Complete name: | Sten Klaasen |
| Born: | 09/05/1982 |
| Place of birth: |
Estonia |
| Nationality: |
Estonia |