| U21 EURO Qualifiers 2019/2020 - Appearances as Assistant | ||||
| 10/09/2019 | Belarus | - | Portugal | 0:2 |
| 12/11/2020 | Iceland | - | Italy | 1:2 |
| U21 EURO Qualifiers 2019/2020 - Appearances as Assistant | ||||
| 10/09/2019 | Belarus | - | Portugal | 0:2 |
| 12/11/2020 | Iceland | - | Italy | 1:2 |
| Complete name: | Konstantinos Nikolaidis |
| Born: | 00/00/1988 |
| Place of birth: |
Greece |
| Nationality: |
Greece |