| Europa League 2019/2020 - Appearances as Referee |  |
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| 07/11/2019 | Lazio Roma | - | Celtic FC | 1:2 | 2 | - | - |
| 20/02/2020 | Wolverhampton Wanderers | - | Espanyol Barcelona | 4:0 | 5 | - | - |
| Europa League 2019/2020 - Appearances as Referee | |
|
|
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| 07/11/2019 | Lazio Roma | - | Celtic FC | 1:2 | 2 | - | - |
| 20/02/2020 | Wolverhampton Wanderers | - | Espanyol Barcelona | 4:0 | 5 | - | - |
| Complete name: | Tobias Stieler |
| Born: | 02/07/1981 |
| Place of birth: |
Germany |
| Residence: | Hamburg |
| Nationality: |
Germany |
| Profession: | Jurist |
| Club: | SG Rosenhöhe |
| Height: | 184 cm |
| Weight: | 78 kg |
| Bundesliga (GER) appearances: | 178 |