| Europa League 1973/1974 - Appearances as Referee |  |
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 |
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| 17/09/1973 | VfB Stuttgart | - | Olympiakos Nikosia | 9:0 | - | - | - |
| 07/11/1973 | Lazio Roma | - | Ipswich Town | 4:2 | 2 | - | - |
| Europa League 1973/1974 - Appearances as Referee | |
|
|
||||
| 17/09/1973 | VfB Stuttgart | - | Olympiakos Nikosia | 9:0 | - | - | - |
| 07/11/1973 | Lazio Roma | - | Ipswich Town | 4:2 | 2 | - | - |
| Complete name: | Leonardus Wilhelmus van der Kroft |
| Born: | 02/02/1929 † 24/11/2016 |
| Place of birth: |
Den Haag, 
Netherlands |
| Nationality: |
Netherlands |