| | Belgium (2) |
|---|
| Club Brugge, | | Racing Genk, |
| | Bosnia-Herzegovina (1) |
|---|
| Zrinjski Mostar, |
| |
| Croatia (1) |
|---|
| Dinamo Zagreb, |
| | Czech Republic (1) |
|---|
| Viktoria Plzeň, |
| | England (2) |
|---|
| Crystal Palace, | | Nottingham Forest, |
| |
| Germany (2) |
|---|
| Bayer Leverkusen, | | Stuttgart, |
| | Greece (3) |
|---|
| Olympiacos Piraeus, | | Panathinaikos, | | PAOK FC, |
| | | Italy (3) |
|---|
| Bologna, | | Fiorentina, | | Internazionale, |
|
| | North Macedonia (1) |
|---|
| KF Shkëndija, |
| | Norway (2) |
|---|
| Bodø-Glimt, | | SK Brann, |
| |
| | | Spain (2) |
|---|
| Atlético Madrid, | | Celta de Vigo, |
| | Turkey (2) |
|---|
| Fenerbahçe, | | Samsunspor, |
|