| DFB-Pokal 2021/2022 - Appearances as Assistant | ||||
| 18/01/2022 | FC St. Pauli | - | Borussia Dortmund | 2:1 |
| DFB-Pokal 2021/2022 - Appearances as Assistant | ||||
| 18/01/2022 | FC St. Pauli | - | Borussia Dortmund | 2:1 |
| Complete name: | Thorben Siewer |
| Born: | 05/07/1987 |
| Place of birth: |
Germany |
| Residence: | Drolshagen |
| Nationality: |
Germany |
| Profession: | Controller |
| Club: | FC Schreibershof |