| Europa League Qual. 2011/2012 - Appearances as Assistant | ||||
| 04/08/2011 | FK Senica | - | RB Salzburg | 0:3 |
| Europa League Qual. 2011/2012 - Appearances as Assistant | ||||
| 04/08/2011 | FK Senica | - | RB Salzburg | 0:3 |
| Complete name: | Sten Klaasen |
| Born: | 09/05/1982 |
| Place of birth: |
Estonia |
| Nationality: |
Estonia |