| Standings | P | W | D | L | GD | PTS | |
|---|---|---|---|---|---|---|---|
| 1 | Chelsea | 3 | 3 | 0 | 0 | 7 | 9 |
| 2 | Vitoria Guimaraes | 3 | 2 | 1 | 0 | 4 | 7 |
| 3 | Fiorentina | 3 | 1 | 1 | 1 | 1 | 4 |
| 4 | Rapid Wien | 3 | 2 | 0 | 1 | 2 | 6 |
| 5 | Djurgarden | 3 | 2 | 1 | 0 | 2 | 7 |
| 6 | Lugano | 3 | 2 | 0 | 1 | -1 | 6 |
| 7 | Legia Warszawa | 3 | 2 | 0 | 1 | 4 | 6 |
| 8 | Cercle Brugge | 3 | 1 | 1 | 1 | 1 | 4 |
| 9 | Jagiellonia Bialystok | 3 | 1 | 1 | 1 | 0 | 4 |
| 10 | Shamrock Rovers | 3 | 1 | 1 | 1 | -1 | 4 |
| 11 | APOEL Nicosia | 3 | 2 | 1 | 0 | 3 | 7 |
| 12 | Pafos FC | 3 | 1 | 1 | 1 | 2 | 4 |
| 13 | Panathinaikos | 3 | 1 | 1 | 1 | 1 | 4 |
| 14 | Olimpija Ljubljana | 3 | 1 | 1 | 1 | 1 | 4 |
| 15 | Real Betis | 3 | 1 | 0 | 2 | -1 | 3 |
| 16 | FC Heidenheim 1846 | 3 | 2 | 0 | 1 | 1 | 6 |
| 17 | Gent | 3 | 0 | 0 | 3 | -5 | 0 |
| 18 | FC Copenhagen | 3 | 1 | 1 | 1 | -2 | 4 |
| 19 | Vikingur Reykjavik | 3 | 0 | 2 | 1 | -4 | 2 |
| 20 | Borac Banja Luka | 3 | 1 | 0 | 2 | -4 | 3 |
| 21 | NK Celje | 3 | 0 | 0 | 3 | -5 | 0 |
| 22 | Omonia Nicosia | 3 | 0 | 1 | 2 | -3 | 1 |
| 23 | Molde | 3 | 0 | 1 | 2 | -4 | 1 |
| 24 | TSC Backa Topola | 3 | 0 | 1 | 2 | -4 | 1 |
| 25 | Heart of Midlothian | 3 | 1 | 0 | 2 | -3 | 3 |
| 26 | Istanbul Basaksehir | 3 | 0 | 2 | 1 | -4 | 2 |
| 27 | Mlada Boleslav | 3 | 0 | 0 | 3 | -4 | 0 |
| 28 | FK Astana | 3 | 0 | 1 | 2 | -3 | 1 |
| 29 | St. Gallen | 3 | 1 | 1 | 1 | -3 | 4 |
| 30 | HJK Helsinki | 3 | 0 | 0 | 3 | -5 | 0 |
| 31 | FC Noah | 3 | 0 | 0 | 3 | -10 | 0 |
| 32 | The New Saints | 3 | 0 | 0 | 3 | -4 | 0 |
| 33 | Dinamo Minsk | 3 | 0 | 0 | 3 | -9 | 0 |
| 34 | Larne | 3 | 0 | 0 | 3 | -6 | 0 |
| 35 | LASK Linz | 3 | 0 | 0 | 3 | -10 | 0 |
| 36 | Petrocub Hincesti | 3 | 0 | 2 | 1 | -2 | 2 |
- Advance to round of 16 (seeded)
- Advance to knockout phase play-offs (seeded)
- Advance to knockout phase play-offs (unseeded)