|Referee: Andris Treimanis (LVA) – Stadium: Gundadalur, Torshavn (FRO)|
|Referee: Eitan Shemeulevitch (ISR) – Stadium: Bashkimi Stadium, Kumanovo (MKD)|
|Referee: Mitja Žganec (SVN) – Stadium: Şähär stadionu, Lankaran (AZE)|
|Referee: Radu Marian Petrescu (ROU) – Stadium: Gradski, Jagodina (SRB)|
|Referee: Alexandre Boucaut (BEL) – Stadium: Rakvere, Rakvere (EST)|
|Referee: Christopher Lautier (MLT) – Stadium: Kuopion Keskuskenttä, Kuopio (FIN)|
|Referee: Danilo Grujić (SRB) – Stadium: Bashkimi Stadium, Kumanovo (MKD)|
|Referee: Georgi Vadachkoria (GEO) – Stadium: Kadriorg, Tallinn (EST)|
|Referee: Markus Hameter (AUT) – Stadium: Yerevan Republican Stadium after Vazgen Sargsyan, Yerevan (ARM)|
|Referee: Radek Matějek (CZE) – Stadium: Harjun Stadion, Jyvaskyla (FIN)|
|Referee: Jari Järvinen (FIN) – Stadium: Gradski, Niksic (MNE)|
|Referee: Sergiy Dankovskyy (UKR) – Stadium: Dalga Stadium, Baku (AZE)|
|Referee: John Beaton (SCO) – Stadium: Borås Arena, Boras (SWE)|
|Referee: Anatoliy Abdula (UKR) – Stadium: Stadium of Marijampole football club, Marijampole (LTU)|
|Referee: Bardhyl Pashaj (ALB) – Stadium: La Frontière, Esch-sur-Alzette (LUX)|
|Referee: Georgi Yordanov (BUL) – Stadium: Zimbru, Chisinau (MDA)|
|Referee: Ivaylo Stoyanov (BUL) – Stadium: Hibernians Ground, Corradino (MLT)|
|Referee: Tolga Özkalfa (TUR) – Stadium: Tsentraluri, Kutaisi (GEO)|
|Referee: Vitali Sevostyanik (BLR) – Stadium: Stadiumi Kombëtar Qemal Stafa, Tirana (ALB)|
|FC Santa Coloma||0-1||Osijek|
|Referee: Sergejus Slyva (LTU) – Stadium: Estadi Comunal, Andorra la Vella (AND)|
|Referee: Goran Spirkoski (MKD) – Stadium: Asim Ferhatović Hase Stadion, Sarajevo (BIH)|
|Twente||6-0||UE Santa Coloma|
|Referee: Enea Jorgji (ALB) – Stadium: FC Twente Stadion, Enschede (NED)|
|Olimpija Ljubljana||3-0||Jeunesse Esch|
|Referee: Fariz Yusifov (AZE) – Stadium: ŠRC Stožice, Ljubljana (SVN)|
|Referee: Luc Wouters (BEL) – Stadium: Municipal Stadium Poznan, Poznan (POL)|
|Referee: Ignasi Villamayor Rozados (AND) – Stadium: Gundadalur, Torshavn (FRO)|
|Referee: João Ferreira (POR) – Stadium: Hidegkúti Nándor, Budapest (HUN)|
|Referee: Nikola Dabanović (MNE) – Stadium: The Racecourse Ground, Wrexham (WAL)|
|Referee: Sven Bindels (LUX) – Stadium: Flamurtari, Vlora (ALB)|
|La Fiorita||0-2||Liepājas Metalurgs|
|Referee: Laurent Kopriwa (LUX) – Stadium: Stadio Olimpico, Serravalle (SMR)|
|Referee: Padraig Sutton (IRL) – Stadium: Niko Dovana, Durres (ALB)|
|Referee: Christos Nicolaides (CYP) – Stadium: Nantporth, Bangor (WAL)|
|Referee: Igor Satchi (MDA) – Stadium: Richmond Park, Dublin (IRL)|
|Referee: Jovan Kaludjerović (MNE) – Stadium: Dalymount Park, Dublin (IRL)|
|Referee: Adrien Jaccottet (SUI) – Stadium: Solitude, Belfast (NIR)|
|Referee: Dawid Piasecki (POL) – Stadium: Seaview, Belfast (NIR)|
|Referee: Serdar Gözübüyük (NED) – Stadium: Gradski Stadium Banja Luka, Banjaluka (BIH)|
|Referee: Denis Scherbakov (BLR) – Stadium: Kaplakrikavöllur, Hafnarfjördur (ISL)|
Last updated: 31/03/2015 01:12 CET
The UEFA Europa League comprises three qualifying rounds, a play-off round, a group stage and five knockout rounds.
In matches in the three qualifying rounds and the play-offs, clubs play two matches against each other on a home-and-away basis. The club which scores the greater aggregate of goals qualifies for the next round, with away goals and then penalties used to determine the winner in the event of a draw.
The play-off round winners join the ten losers from the UEFA Champions League play-offs and automatic entrants. The clubs are split into 12 groups of four teams, playing home and away against each of their pool opponents between September and December. Two sides from each section advance, proceeding into the round of 32 alongside eight third-placed teams from the UEFA Champions League group stage.
From the last 32 until the semi-finals, clubs play two games against each other on a home-and-away basis with the same rules as the qualifying and play-off rounds applied. In the last 32, group winners and the four third-placed sides from the UEFA Champions League with the best records are seeded, guaranteeing they will play the second leg at home. Teams from the same group or the same association cannot be drawn together. From the round of 16 onwards the draw is free.
The final is decided by a single match, which this season will be played at the Amsterdam ArenA on Wednesday 15 May.
Further details, including the criteria for separating teams that finish level on points in a group, can be found in the official competition regulations.