| Champions League 2006/2007 - Appearances as Referee |  |
 |
 |
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| 31/10/2006 | Liverpool FC | - | Girondins Bordeaux | 3:0 | 1 | - | 1 |
| 06/12/2006 | FC Porto | - | Arsenal FC | 0:0 | - | - | - |
| 25/04/2007 | Chelsea FC | - | Liverpool FC | 1:0 | 1 | - | - |
| Champions League 2006/2007 - Appearances as Referee | |
|
|
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| 31/10/2006 | Liverpool FC | - | Girondins Bordeaux | 3:0 | 1 | - | 1 |
| 06/12/2006 | FC Porto | - | Arsenal FC | 0:0 | - | - | - |
| 25/04/2007 | Chelsea FC | - | Liverpool FC | 1:0 | 1 | - | - |
| Complete name: | Dr. Markus Merk |
| Born: | 15/03/1962 |
| Place of birth: |
Kaiserslautern, 
Germany |
| Residence: | Kaiserslautern |
| Nationality: |
Germany |
| Height: | 181 cm |
| Weight: | 69 kg |
| Bundesliga (GER) appearances: | 338 |