| Europa League 2010/2011 - Appearances as Assistant | ||||
| 04/11/2010 | Lech Poznań | - | Manchester City | 3:1 |
| 02/12/2010 | Borussia Dortmund | - | Karpaty Lviv | 3:0 |
| 24/02/2011 | Paris Saint-Germain | - | BATE Borisov | 0:0 |
| 17/03/2011 | FC Porto | - | CSKA Moskva | 2:1 |
| Europa League 2010/2011 - Appearances as Assistant | ||||
| 04/11/2010 | Lech Poznań | - | Manchester City | 3:1 |
| 02/12/2010 | Borussia Dortmund | - | Karpaty Lviv | 3:0 |
| 24/02/2011 | Paris Saint-Germain | - | BATE Borisov | 0:0 |
| 17/03/2011 | FC Porto | - | CSKA Moskva | 2:1 |
| Complete name: | Nicky Siebert |
| Born: | 29/12/1969 |
| Place of birth: |
Netherlands |
| Nationality: |
Netherlands |