| | Österreich (1) |
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| Rapid Wien, |
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| Zrinjski Mostar, |
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| AEK Larnaca, | | Omonia Nicosia, |
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| Sigma Olomouc, | | Sparta Praha, |
| | England (1) |
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| Crystal Palace, |
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| Kuopion Palloseura, |
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| Frankreich (1) |
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| RC Strasbourg Alsace, |
| | | Gibraltar (1) |
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| Lincoln Red Imps, |
| | Griechenland (1) |
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| AEK Athens, |
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| | Irland (2) |
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| Shamrock Rovers, | | Shelbourne FC, |
| | |
| Malta (1) |
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| Hamrun Spartans, |
| | | Nordmakedonien (1) |
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| KF Shkëndija, |
| | Polen (4) |
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| Jagiellonia, | | Lech Poznań, | | Legia Warszawa, | | Raków Częstochowa, |
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| Universitatea Craiova, |
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| Slovan Bratislava, |
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| Rayo Vallecano, |
| | | Schweiz (1) |
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| FC Lausanne-Sport, |
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| Ukraine (2) |
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| Dynamo Kyiv, | | Shakhtar Donetsk, |
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