| Youth Youth League 2019/2020 - Appearances as Assistant | ||||
| 17/09/2019 | AFC Ajax | - | Lille OSC | 4:0 |
| Youth Youth League 2019/2020 - Appearances as Assistant | ||||
| 17/09/2019 | AFC Ajax | - | Lille OSC | 4:0 |
| Complete name: | Sten Klaasen |
| Born: | 09/05/1982 |
| Place of birth: |
Estonia |
| Nationality: |
Estonia |