| | Andorra (1) |
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| Inter Club d'Escaldes, |
| | Belgium (2) |
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| AA Gent, | | Sint-Truiden, |
| | Bosnia-Herzegovina (1) |
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| FK Borac Banja Luka, |
|
| | | | Czech Republic (1) |
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| FK Jablonec, |
|
| Denmark (4) |
|---|
| Aarhus GF, | | FC København, | | FC Midtjylland, | | FC Nordsjælland, |
| | England (1) |
|---|
| Brighton and Hove Albion, |
| | Finland (1) |
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| Kuopion Palloseura, |
| |
| | | Gibraltar (1) |
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| Lincoln Red Imps, |
| |
| | | | Lithuania (1) |
|---|
| Kauno Zalgiris, |
|
| Netherlands (2) |
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| Ajax, | | FC Twente, |
| | | Portugal (1) |
|---|
| Sporting Braga, |
| | Romania (1) |
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| Universitatea Craiova, |
|
| | | |
| Switzerland (2) |
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| FC Lugano, | | FC Thun, |
| |