Round of 32 , 1st leg : 14-16 February 2012
| Rubin |  | 0-1 |  | Olympiacos |
| Referee: Milorad Mažić (SRB) – Stadium: Stadion Luzhniki, Moscow (RUS) | ||||
| 02/23/2012 11:52:00 | ||||
| Braga |  | 0-2 |  | Beşiktaş |
| Referee: Kevin Blom (NED) – Stadium: Estádio Municipal de Braga, Braga (POR) | ||||
| 02/23/2012 11:52:00 | ||||
| Lokomotiv Moskva |  | 2-1 |  | Athletic |
| Referee: Ovidiu Alin Hategan (ROU) – Stadium: Stadion Luzhniki, Moscow (RUS) | ||||
| 02/23/2012 11:52:00 | ||||
| Salzburg |  | 0-4 |  | Metalist |
| Referee: Marijo Strahonja (CRO) – Stadium: Stadion Salzburg, Salzburg (AUT) | ||||
| 02/23/2012 11:52:00 | ||||
| Ajax |  | 0-2 |  | Man. United |
| Referee: Gianluca Rocchi (ITA) – Stadium: Amsterdam ArenA, Amsterdam (NED) | ||||
| 02/23/2012 11:52:00 | ||||
| Plzeň |  | 1-1 |  | Schalke |
| Referee: Stéphane Lannoy (FRA) – Stadium: Stadion města Plzně, Plzen (CZE) | ||||
| 02/23/2012 11:52:01 | ||||
| AZ |  | 1-0 |  | Anderlecht |
| Referee: Florian Meyer (GER) – Stadium: AZ Stadion, Alkmaar (NED) | ||||
| 02/23/2012 11:52:00 | ||||
| Lazio |  | 1-3 |  | Atlético |
| Referee: Pavel Kralovec (CZE) – Stadium: Stadio Olimpico, Rome (ITA) | ||||
| 02/23/2012 11:52:00 | ||||
| Legia |  | 2-2 |  | Sporting |
| Referee: Matej Jug (SVN) – Stadium: Stadion Wojska Polskiego im., Warsaw (POL) | ||||
| 02/23/2012 11:52:01 | ||||
| Steaua |  | 0-1 |  | Twente |
| Referee: Mark Clattenburg (ENG) – Stadium: National Arena, Bucharest (ROU) | ||||
| 02/23/2012 11:52:01 | ||||
| Wisła |  | 1-1 |  | Standard Liège |
| Referee: David Fernández Borbalán (ESP) – Stadium: Stadion Miejski im. Henryka, Krakow (POL) | ||||
| 02/23/2012 11:52:01 | ||||
| Udinese |  | 0-0 |  | PAOK |
| Referee: Alberto Undiano Mallenco (ESP) – Stadium: Stadio Friuli, Udine (ITA) | ||||
| 02/23/2012 11:52:01 | ||||
| Trabzonspor |  | 1-2 |  | PSV |
| Referee: Felix Brych (GER) – Stadium: Hüseyin Avni Aker Stadyumu, Trabzon (TUR) | ||||
| 02/23/2012 11:52:01 | ||||
| Hannover |  | 2-1 |  | Club Brugge |
| Referee: Manuel De Sousa (POR) – Stadium: Hannover Arena, Hannover (GER) | ||||
| 02/23/2012 11:52:01 | ||||
| Porto |  | 1-2 |  | Man. City |
| Referee: Cüneyt Çakır (TUR) – Stadium: Estádio do Dragão, Porto (POR) | ||||
| 02/23/2012 11:52:00 | ||||
| Stoke |  | 0-1 |  | Valencia |
| Referee: Peter Rasmussen (DEN) – Stadium: Stoke Stadium, Stoke-on-Trent (ENG) | ||||
| 02/23/2012 11:52:00 | ||||
Round of 32 , 2nd leg : 22-23 February 2012
| Valencia |  |  | Stoke | |
| Referee: Markus Strömbergsson (SWE) – Stadium: Estadi de Mestalla, Valencia (ESP) | ||||
| Athletic |  |  | Lokomotiv Moskva | |
| Referee: Pawel Gil (POL) – Stadium: San Mamés, Bilbao (ESP) | ||||
| Twente |  |  | Steaua | |
| Referee: Robert Schörgenhofer (AUT) – Stadium: FC Twente Stadion, Enschede (NED) | ||||
| PAOK |  |  | Udinese | |
| Referee: Tom Harald Hagen (NOR) – Stadium: Stadio Toumba, Salonika (GRE) | ||||
| PSV |  |  | Trabzonspor | |
| Referee: Tony Chapron (FRA) – Stadium: PSV Stadion, Eindhoven (NED) | ||||
| Club Brugge |  |  | Hannover | |
| Referee: William Collum (SCO) – Stadium: Jan Breydelstadion, Bruges (BEL) | ||||
| Standard Liège |  |  | Wisła | |
| Referee: Milorad Mažić (SRB) – Stadium: Stade Maurice Dufrasne, Liege (BEL) | ||||
| Beşiktaş |  |  | Braga | |
| Referee: István Vad (HUN) – Stadium: BJK İnönü Stadyumu, Istanbul (TUR) | ||||
| Sporting |  |  | Legia | |
| Referee: Vladislav Bezborodov (RUS) – Stadium: José Alvalade, Lisbon (POR) | ||||
| Schalke |  |  | Plzeň | |
| Referee: Alan Kelly (IRL) – Stadium: Arena AufSchalke, Gelsenkirchen (GER) | ||||
| Metalist |  |  | Salzburg | |
| Referee: Antony Gautier (FRA) – Stadium: Metalist Stadium, Kharkiv (UKR) | ||||
| Olympiacos |  |  | Rubin | |
| Referee: Stefan Johannesson (SWE) – Stadium: Georgios Karaiskakis Stadium, Piraeus (GRE) | ||||
| Anderlecht |  |  | AZ | |
| Referee: Pedro Proença (POR) – Stadium: Constant Vanden Stock Stadium, Brussels (BEL) | ||||
| Atlético |  |  | Lazio | |
| Referee: Martin Atkinson (ENG) – Stadium: Estadio Vicente Calderón, Madrid (ESP) | ||||
| Man. United |  |  | Ajax | |
| Referee: Damir Skomina (SVN) – Stadium: Old Trafford, Manchester (ENG) | ||||
Last updated: 23/02/2012 13:35 CET
Road to the final
The UEFA Europa League comprises three qualifying rounds, a play-off round, a group stage and five knockout rounds.
Qualifying
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.
Group stage
The 38 play-off round winners join the ten losers from the UEFA Champions League play-offs. 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.
Knockout phase
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.
Final
The final is decided by a single match, which this season will be played at the National Arena, Bucharest on Wednesday 9 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.