| Champions League 1971/1972 - Appearances as Referee |  |
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 |
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| 20/10/1971 | Valencia CF | - | Újpesti Dózsa SC | 0:1 | 1 | - | - |
| 22/03/1972 | SL Benfica | - | Feijenoord | 5:1 | 5 | - | - |
| Champions League 1971/1972 - Appearances as Referee | |
|
|
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| 20/10/1971 | Valencia CF | - | Újpesti Dózsa SC | 0:1 | 1 | - | - |
| 22/03/1972 | SL Benfica | - | Feijenoord | 5:1 | 5 | - | - |
| Complete name: | John Clive Thomas |
| Born: | 22/06/1936 |
| Place of birth: |
Wales |
| Residence: | Treorchy |
| Nationality: |
Wales |