| 2. Bundesliga 2020/2021 - Appearances as Assistant | ||||
| 31/10/2020 | SC Paderborn 07 | - | Jahn Regensburg | 3:1 |
| 30/11/2020 | VfL Bochum | - | Fortuna Düsseldorf | 5:0 |
| 18/04/2021 | VfL Osnabrück | - | Fortuna Düsseldorf | 0:3 |
| 2. Bundesliga 2020/2021 - Appearances as Assistant | ||||
| 31/10/2020 | SC Paderborn 07 | - | Jahn Regensburg | 3:1 |
| 30/11/2020 | VfL Bochum | - | Fortuna Düsseldorf | 5:0 |
| 18/04/2021 | VfL Osnabrück | - | Fortuna Düsseldorf | 0:3 |
| Complete name: | Norbert Grudzinski |
| Born: | 12/05/1977 |
| Place of birth: |
Germany |
| Residence: | Hamburg |
| Nationality: |
Germany |
| Profession: | Groß- und Außenhandelskaufmann |
| Club: | TSV Wandsetal |
| Height: | 187 cm |
| Weight: | 73 kg |