| U21 EURO Qualifiers 2019/2020 - Appearances as Assistant | ||||
| 10/09/2019 | Wales | - | Germany | 1:5 |
| U21 EURO Qualifiers 2019/2020 - Appearances as Assistant | ||||
| 10/09/2019 | Wales | - | Germany | 1:5 |
| Complete name: | Sebastian Mucha |
| Born: | |
| Place of birth: |
Poland |
| Nationality: |
Poland |