| U21 EURO Qualifiers 2009/2010 - Appearances as Referee |  |
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| 09/09/2009 | Azerbaijan | - | Belarus | 2:3 | 3 | - | - |
| 03/03/2010 | Andorra | - | Moldova | 1:3 | 4 | - | 6 |
| U21 EURO Qualifiers 2009/2010 - Appearances as Referee | |
|
|
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| 09/09/2009 | Azerbaijan | - | Belarus | 2:3 | 3 | - | - |
| 03/03/2010 | Andorra | - | Moldova | 1:3 | 4 | - | 6 |
| Complete name: | Mario Vlk |
| Born: | 21/09/1974 |
| Place of birth: |
Slovakia |
| Nationality: |
Slovakia |