| Champions League 1977/1978 - Appearances as Referee |  |
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| 19/10/1977 | FC Nantes | - | Atlético Madrid | 1:1 | 3 | - | - |
| Champions League 1977/1978 - Appearances as Referee | |
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| 19/10/1977 | FC Nantes | - | Atlético Madrid | 1:1 | 3 | - | - |
| Complete name: | John Clive Thomas |
| Born: | 22/06/1936 |
| Place of birth: |
Wales |
| Residence: | Treorchy |
| Nationality: |
Wales |