# 2012 Copa Libertadores knockout stage

The knockout stages of the 2012 Copa Santander Libertadores de América consisted of four stages:
* Round of 16 (first legs: April 25, May 1–3; second legs: May 8–10)
* Quarterfinals (first legs: May 16–17; second legs: May 23–24)
* Semifinals (first legs: June 13–14; second legs: June 20–21)
* Finals (first leg: June 27; second leg: July 4)

## Format

The group winners and runners-up of the second stage qualified for the knockout stages. The sixteen teams played a single-elimination tournament. In each stage, teams played in two-legged ties on a home-away basis, with the higher-seeded team playing the second leg at home. Each team earned 3 points for a win, 1 point for a draw, and 0 points for a loss. The following criteria were used for breaking ties on points, except for the final:
* Goal difference
* Away goals
* Penalty shootout (no extra time is played)
For the final, the first tiebreaker was goal difference. If tied on goal difference, the away goals rule would not be applied, and 30 minutes of extra time would be played. If still tied after extra time, the title would be decided by penalty shootout.
If two teams from the same association reached the semifinals, they would be forced to play each other.

## Qualified teams

| Group | Winners | Runners-up |
| 1 | Santos | Internacional |
| 2 | Lanús | Emelec |
| 3 | Unión Española | Bolívar |
| 4 | Fluminense | Boca Juniors |
| 5 | Libertad | Vasco da Gama |
| 6 | Corinthians | Cruz Azul |
| 7 | Vélez Sársfield | Deportivo Quito |
| 8 | Universidad de Chile | Atlético Nacional |

## Seeding

The 16 qualified teams are seeded in the knockout stages according to their results in the second stage, with the group winners seeded 1–8, and the group runners-up seeded 9–16. The teams were ranked by: 1. Points (Pts); 2. Goal difference (GD); 3. Goals scored (GF); 4. Away goals (AG); 5. Drawing of lots.
Teams qualified as group winners :
| Teams qualified as group winners Seed Team Pts GD GF AG 1 Fluminense15+375 2 Corinthians14+11134 3 Santos13+7125 4 Universidad de Chile13+5112 5 Libertad13+4114 6 Vélez Sársfield12+4105 7 Lanús10+5113 8 Unión Española10+3105 | Teams qualified as group runners-up Seed Team Pts GD GF AG 9 Boca Juniors13+694 10 Vasco da Gama13+4104 11 Atlético Nacional11+8169 12 Cruz Azul11+7113 13 Deportivo Quito10+7111 14 Bolívar10+293 15 Emelec9−173 16 Internacional8+4102 |

## Bracket

In each tie, the higher-seeded team played the second leg at home.
| Round of 16 | Round of 16 | Round of 16 | Round of 16 | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | | Finals | Finals | Finals | Finals |
| 1 | Fluminense | 0 | 2 | | | | | | | | | | | | | |
| 16 | Internacional | 0 | 1 | | | | | | | | | | | | | |
| 16 | Internacional | 0 | 1 | 1 | Fluminense | 0 | 1 | | | | | | | | | |
| | | | | 9 | Boca Juniors | 1 | 1 | | | | | | | | | |
| 8 | Unión Española | 1 | 2 | 9 | Boca Juniors | 1 | 1 | | | | | | | | | |
| 9 | Boca Juniors | 2 | 3 | | | | | | | | | | | | | |
| 9 | Boca Juniors | 2 | 3 | | | | | 9 | Boca Juniors | 2 | 0 | | | | | |
| | | | | | | | | 4 | U. de Chile | 0 | 0 | | | | | |
| 4 | U. de Chile | 1 | 6 | | | | | | | | | 4 | U. de Chile | 0 | 0 | | | | | |
| 13 | Deportivo Quito | 4 | 0 | | | | | | | | | | | | | |
| 13 | Deportivo Quito | 4 | 0 | 4 | U. de Chile (p) | 1 | 1 (5) | | | | | | | | | |
| | | | | 5 | Libertad | 1 | 1 (3) | | | | | | | | | |
| 5 | Libertad | 1 | 2 | 5 | Libertad | 1 | 1 (3) | | | | | | | | | |
| 12 | Cruz Azul | 1 | 0 | | | | | | | | | | | | | |
| 12 | Cruz Azul | 1 | 0 | | | | | | | | | | 9 | Boca Juniors | 1 | 0 |
| | | | | | | | | | | | | | 2 | Corinthians | 1 | 2 |
| 2 | Corinthians | 0 | 3 | | | | | | | | | | | | | | 2 | Corinthians | 1 | 2 |
| 15 | Emelec | 0 | 0 | | | | | | | | | | | | | |
| 15 | Emelec | 0 | 0 | 2 | Corinthians | 0 | 1 | | | | | | | | | |
| | | | | 10 | Vasco da Gama | 0 | 0 | | | | | | | | | |
| 7 | Lanús | 1 | 2 (4) | 10 | Vasco da Gama | 0 | 0 | | | | | | | | | |
| 10 | Vasco da Gama (p) | 2 | 1 (5) | | | | | | | | | | | | | |
| 10 | Vasco da Gama (p) | 2 | 1 (5) | | | | | 2 | Corinthians | 1 | 1 | | | | | |
| | | | | | | | | 3 | Santos | 0 | 1 | | | | | |
| 3 | Santos | 1 | 8 | | | | | | | | | 3 | Santos | 0 | 1 | | | | | |
| 14 | Bolívar | 2 | 0 | | | | | | | | | | | | | |
| 14 | Bolívar | 2 | 0 | 3 | Santos (p) | 0 | 1 (4) | | | | | | | | | |
| | | | | 6 | Vélez Sársfield | 1 | 0 (2) | | | | | | | | | |
| 6 | Vélez Sársfield | 1 | 1 | 6 | Vélez Sársfield | 1 | 0 (2) | | | | | | | | | |
| 11 | Atlético Nacional | 0 | 1 | | | | | | | | | | | | | |

## Round of 16

Team 1 played the second leg at home.
| Teams | Teams | Teams | Scores | Scores | Tie-breakers | Tie-breakers | Tie-breakers |
| Team 1 | Points | Team 2 | 1st leg | 2nd leg | GD | AG | Pen. |
| Fluminense | 4:1 | Internacional | 0–0 | 2–1 | — | — | — |
| Corinthians | 4:1 | Emelec | 0–0 | 3–0 | — | — | — |
| Santos | 3:3 | Bolívar | 1–2 | 8–0 | +7:−7 | — | — |
| Universidad de Chile | 3:3 | Deportivo Quito | 1–4 | 6–0 | +3:−3 | — | — |
| Libertad | 4:1 | Cruz Azul | 1–1 | 2–0 | — | — | — |
| Vélez Sársfield | 4:1 | Atlético Nacional | 1–0 | 1–1 | — | — | — |
| Lanús | 3:3 | Vasco da Gama | 1–2 | 2–1 | 0:0 | 1:1 | 4–5 |
| Unión Española | 0:6 | Boca Juniors | 1–2 | 2–3 | — | — | — |

### Match A

Fluminense won on points 4–1.

### Match B

Corinthians won on points 4–1.

### Match C

Tied on points 3–3, Santos won on goal difference.

### Match D

Tied on points 3–3, Universidad de Chile won on goal difference.

### Match E

Libertad won on points 4–1.

### Match F

Vélez Sársfield won on points 4–1.

### Match G

Tied on points 3–3, Vasco da Gama won on penalties.

### Match H

Boca Juniors won on points 6–0.

## Quarterfinals

Team 1 played the second leg at home.
| Teams | Teams | Teams | Scores | Scores | Tie-breakers | Tie-breakers | Tie-breakers |
| Team 1 | Points | Team 2 | 1st leg | 2nd leg | GD | AG | Pen. |
| Fluminense | 1:4 | Boca Juniors | 0–1 | 1–1 | — | — | — |
| Corinthians | 4:1 | Vasco da Gama | 0–0 | 1–0 | — | — | — |
| Santos | 3:3 | Vélez Sársfield | 0–1 | 1–0 | 0:0 | 0:0 | 4–2 |
| Universidad de Chile | 2:2 | Libertad | 1–1 | 1–1 | 0:0 | 1:1 | 5–3 |

### Match S1

Boca Juniors won on points 4–1.

### Match S2

Corinthians won on points 4–1.

### Match S3

Tied on points 3–3, Santos won on penalties.

### Match S4

Tied on points 2–2, Universidad de Chile won on penalties.

## Semifinals

Team 1 played the second leg at home.
| Teams | Teams | Teams | Scores | Scores | Tie-breakers | Tie-breakers | Tie-breakers |
| Team 1 | Points | Team 2 | 1st leg | 2nd leg | GD | AG | Pen. |
| Universidad de Chile | 1:4 | Boca Juniors | 0–2 | 0–0 | — | — | — |
| Corinthians | 4:1 | Santos | 1–0 | 1–1 | — | — | — |

### Match F1

Boca Juniors won on points 4–1.

### Match F2

Corinthians won on points 4–1.

## Finals

The Finals were played over two legs, with the higher-seeded team playing the second leg at home. If the teams were tied on points and goal difference at the end of regulation in the second leg, the away goals rule would not be applied and 30 minutes of extra time would be played. If still tied after extra time, the title would be decided by penalty shootout.
Corinthians won on points 4–1.