| Pos | Association | Club 1 | Club 2 | Club 3 |
|---|---|---|---|---|
| ECL Title Holder | WEST HAM UNITED | |||
| 1 | ENGLAND | LIVERPOOL | BRIGHTON & HOVE A. | |
| 2 | SPAIN | VILLARREAL | REAL BETIS | |
| 3 | ITALY | ATALANTA | ROMA | |
| 4 | GERMANY | FREIBURG | LEVERKUSEN | |
| 5 | FRANCE | TOULOUSE | STADE RENNAIS | |
| 6 | PORTUGAL | SPORTING CP | ||
| 7 | NETHERLANDS | AJAX AMSTERDAM | ||
| 8 | AUSTRIA | LASK LINZ | ||
| 9 | SCOTLAND | ABERDEEN | ||
| 10 | RUSSIA | *suspended | ||
| 11 | SERBIA | ČUKARIČKI | ||
| 12 | UKRAINE | ZORYA LUHANSK | ||
| 13 | BELGIUM | UNION ST-GILLOISE | ||
| 14 | SWITZERLAND | LUGANO | ||
| 15 | GREECE | OLYMPIAKOS | ||
| 16 | CZECHIA | SLAVIA PRAHA | ||
| 17 | NORWAY | |||
| 18 | DENMARK | |||
| 19 | CROATIA | |||
| 20 | TURKEY | |||
| 21 | CYPRUS | |||
| 22 | ISRAEL | |||
| 23 | SWEDEN | |||
| 24 | BULGARIA | |||
| 25 | ROMANIA | |||
| 26 | AZERBAIJAN | |||
| 27 | HUNGARY | |||
| 28 | POLAND | |||
| 29 | KAZAKHSTAN | |||
| 30 | SLOVAKIA | |||
| 31 | SLOVENIA | |||
| 32 | BELARUS | |||
| 33 | MOLDOVA | |||
| 34 | LITHUANIA | |||
| 35 | BOSNIA-HERZ. | |||
| 36 | FINLAND | |||
| 37 | LUXEMBOURG | |||
| 38 | LATVIA | |||
| 39 | KOSOVO | |||
| 40 | IRELAND | |||
| 41 | ARMENIA | |||
| 42 | N. IRELAND | |||
| 43 | ALBANIA | |||
| 44 | FAROE ISLANDS | |||
| 45 | ESTONIA | |||
| 46 | MALTA | |||
| 47 | GEORGIA | |||
| 48 | N. MACEDONIA | |||
| 49 | LIECHTENSTEIN | |||
| 50 | WALES | |||
| 51 | GIBRALTAR | |||
| 52 | ICELAND | |||
| 53 | MONTENEGRO | |||
| 54 | ANDORRA | |||
| 55 | SAN MARINO | |||
Round
Qualifying Round
3rd QUALIFYING ROUND 1st Leg
3rd QUALIFYING ROUND 2nd Leg
Group Stage
Knockout Round
Final Stage
Previous Seasons
Group Stage
 |
 |
 |
 |
| WEST HAM UNITED | OLYMPIAKOS | FREIBURG | TSC BAČKA TOPOLA |
| ECL Holder | GRE 3 | GER 5 | SRB 2 |
 |
 |
 |
 |
| AJAX | MARSEILLE | BRIGHTON & HOVE ALBION | AEK ATHENS |
| NED 3 | FRA 3 | ENG 6 | GRE 1 |
 |
 |
 |
 |
| RANGERS | BETIS | SPARTA PRAHA | ARIS LIMASSOL |
| SCO 2 | ESP 6 | CZE 1 | CYP 1 |
 |
 |
 |
 |
| ATALANTA | SPORTING CP | STURM GRAZ | RAKÓW CZĘSTOCHOWA |
| ITA 5 | POR 4 | AUT 2 | POL 1 |
 |
 |
 |
 |
| LIVERPOOL | LASK LINZ | UNION SG | TOULOUSE |
| ENG 5 | AUT 3 | BEL 3 | FRA CP |
 |
 |
 |
 |
| VILLARREAL | RENNES | MACCABI HAIFA | PANATHINAIKOS |
| ESP 5 | FRA 4 | ISR 1 | GRE 2 |
 |
 |
 |
 |
| ROMA | SLAVIA PRAHA | SHERIFF TIRASPOL | SERVETTE |
| ITA 6 | CZE 2 | MDA 1 | SUI 2 |
 |
 |
 |
 |
| LEVERKUSEN | QARABAĞ | MOLDE | BK HÄCKEN |
| GER 6 | AZE 1 | NOR 1 | SWE 1 |
