| Austria (3) |
|---|
| LASK Linz, | | Red Bull Salzburg, | | Wolfsberger AC, |
| | | Belgium (3) |
|---|
| AA Gent, | | Club Brugge, | | Standard Liège, |
| |
| | | England (3) |
|---|
| Arsenal, | | Manchester United, | | Wolverhampton Wanderers, |
| | France (2) |
|---|
| Saint-Etienne, | | Stade Rennes, |
|
| Germany (4) |
|---|
| Bayer Leverkusen, | | Borussia M'gladbach, | | Eintracht Frankfurt, | | Wolfsburg, |
| | Greece (1) |
|---|
| Olympiacos Piraeus, |
| | | Italy (3) |
|---|
| AS Roma, | | Internazionale, | | Lazio Roma, |
|
| | Luxembourg (1) |
|---|
| F91 Dudelange, |
| | Netherlands (4) |
|---|
| Ajax, | | AZ, | | Feyenoord, | | PSV, |
| |
| Portugal (5) |
|---|
| Benfica, | | FC Porto, | | Sporting Braga, | | Sporting CP, | | Vitória Guimarães, |
| | | Russia (2) |
|---|
| CSKA Moskva, | | FC Krasnodar, |
| | Scotland (2) |
|---|
| Celtic, | | Rangers FC, |
|
| | Slovakia (1) |
|---|
| Slovan Bratislava, |
| | Spain (3) |
|---|
| Espanyol, | | Getafe, | | Sevilla, |
| |
| Swiss (3) |
|---|
| FC Basel, | | FC Lugano, | | Young Boys, |
| | Turkey (3) |
|---|
| Besiktas, | | Istanbul Başakşehir, | | Trabzonspor, |
| | Ukraine (3) |
|---|
| Dynamo Kyiv, | | FC Oleksandriya, | | Shakhtar Donetsk, |
|