# 2003 Copa Sudamericana

The 2003 Copa Nissan Sudamericana was the second edition of CONMEBOL's new international club tournament. It was won by Peruvian club Cienciano, who won the first international trophy for their club and the country. They also qualified to play in the 2004 Recopa Sudamericana.

## First stage
### Argentina Preliminary

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Argentina III Preliminary |||||
| Colón | 7–2 | Vélez Sársfield | 3–1 | 4–1 |
| Argentina IV Preliminary |||||
| Independiente | 2–1 | Rosario Central | 1–1 | 1–0 |

### Brazil Preliminary

* Qualifies to the Final Brazilian Preliminary

#### Brazil 1 Preliminary

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts |
| 1 | Santos | 2 | 1 | 1 | 0 | 4 | 1 | +3 | 4 |
| 2 | Internacional | 2 | 1 | 1 | 0 | 4 | 2 | +2 | 4 |
| 3 | Flamengo | 2 | 0 | 0 | 2 | 1 | 6 | −5 | 0 |
| Team 1 | Score | Team 2 |
| Santos | 1–1 | Internacional |
| Internacional | 3–1 | Flamengo |
| Flamengo | 0–3 | Santos |

#### Brazil 2 Preliminary

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts |
| 1 | Fluminense | 2 | 2 | 0 | 0 | 4 | 0 | +4 | 6 |
| 2 | Atlético Mineiro | 2 | 1 | 0 | 1 | 2 | 2 | 0 | 3 |
| 3 | Corinthians | 2 | 0 | 0 | 2 | 0 | 4 | −4 | 0 |
| Team 1 | Score | Team 2 |
| Corinthians | 0–2 | Atlético Mineiro |
| Fluminense | 2–0 | Corinthians |
| Atlético Mineiro | 0–2 | Fluminense |

#### Brazil 3 Preliminary

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts |
| 1 | São Paulo | 2 | 2 | 0 | 0 | 6 | 1 | +5 | 6 |
| 2 | Vasco da Gama | 2 | 0 | 1 | 1 | 2 | 3 | −1 | 1 |
| 3 | Grêmio | 2 | 0 | 1 | 1 | 1 | 5 | −4 | 1 |
| Team 1 | Score | Team 2 |
| Grêmio | 0–4 | São Paulo |
| Vasco da Gama | 1–1 | Grêmio |
| São Paulo | 2–1 | Vasco da Gama |

#### Brazil 4 Preliminary

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts |
| 1 | São Caetano | 2 | 1 | 1 | 0 | 4 | 1 | +3 | 4 |
| 2 | Cruzeiro | 2 | 1 | 1 | 0 | 2 | 1 | +1 | 4 |
| 3 | Palmeiras | 2 | 0 | 0 | 2 | 0 | 4 | −4 | 0 |
| Team 1 | Score | Team 2 |
| São Caetano | 3–0 | Palmeiras |
| Palmeiras | 0–1 | Cruzeiro |
| Cruzeiro | 1–1 | São Caetano |

### Venezuela/Bolivia/2002 Champion Preliminary
#### First round

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Venezuela Preliminary |||||
| Monagas | 1–3 | Deportivo Italchacao | 1–2 | 0–1 |

#### Second round

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Venezuela/San Lorenzo Preliminary |||||
| Deportivo Italchacao | 1–8 | San Lorenzo | 1–2 | 0–6 |
| Bolivia Preliminary |||||
| The Strongest | 3–3 (4–2p) | Bolívar | 2–2 | 1–1 |

### Peru/Chile Preliminary

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Chile Preliminary |||||
| Universidad Católica | 2–2 (5–3p) | Provincial Osorno | 0–1 | 2–1 |
| Peru Preliminary |||||
| Cienciano | 2–0 | Alianza Lima | 1–0 | 1–0 |

### Colombia/Ecuador Preliminary

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Colombia Preliminary |||||
| Atlético Nacional | 2–1 | Deportivo Pasto | 0–0 | 2–1 |
| Ecuador Preliminary |||||
| LDU Quito | 3–2 | Barcelona | 2–0 | 1–2 |

### Paraguay/Uruguay Preliminary

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Paraguay Preliminary |||||
| Guaraní | 1–1 (2–4p) | Libertad | 0–1 | 1–0 |
| Uruguay Preliminary |||||
| Danubio | 2–3 | Nacional | 0–1 | 2–2 |

## Second stage
### Argentina Zone

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Quarterfinalist 4 |||||
| Colón | 2–3 | Boca Juniors | 1–1 | 1–2 |
| Quarterfinalist 8 |||||
| Independiente | 1–8 | River Plate | 1–4 | 0–4 |

### Brazil Zone

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Quarterfinalist 2 |||||
| São Caetano | 1–2 | Santos | 0–1 | 1–1 |
| Quarterfinalist 5 |||||
| São Paulo | 2–1 | Fluminense | 1–0 | 1–1 |

### Venezuela/Bolivia/2002 Champion Zone

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Quarterfinalist 6 |||||
| The Strongest | 3–2 | San Lorenzo | 2–0 | 1–2 |

### Peru/Chile Zone

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Quarterfinalist 1 |||||
| Cienciano | 5–3 | Universidad Católica | 4–0 | 1–3 |

### Colombia/Ecuador Zone

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Quarterfinalist 3 |||||
| LDU Quito | 1–2 | Atlético Nacional | 1–1 | 0–1 |

### Paraguay/Uruguay Zone

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Quarterfinalist 7 |||||
| Nacional | 3–3 (2–3p) | Libertad | 3–0 | 0–3 |

## Bracket

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Finals | Finals | Finals | Finals |
| Cienciano | 1 | 2 | 3 | | | | | | | | |
| Santos | 1 | 1 | 2 | | | | | | | | |
| Santos | 1 | 1 | 2 | Cienciano | 2 | 1 | 3 | | | | |
| | | | | Atlético Nacional | 1 | 0 | 1 | | | | |
| Atlético Nacional | 1 | 4 | 5 | Atlético Nacional | 1 | 0 | 1 | | | | |
| Boca Juniors | 0 | 1 | 1 | | | | | | | | |
| Boca Juniors | 0 | 1 | 1 | | | | | Cienciano | 3 | 1 | 4 |
| | | | | | | | | River Plate | 3 | 0 | 3 |
| São Paulo | 4 | 3 | 7 | | | | | | | | | River Plate | 3 | 0 | 3 |
| The Strongest | 1 | 1 | 2 | | | | | | | | |
| The Strongest | 1 | 1 | 2 | São Paulo | 1 | 2 | 3 (2) | | | | |
| | | | | River Plate | 3 | 0 | 3 (4) | | | | |
| Libertad | 0 | 1 | 1 | River Plate | 3 | 0 | 3 (4) | | | | |
| River Plate | 2 | 0 | 2 | | | | | | | | |

## Quarterfinals

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| River Plate | 2–1 | Libertad | 2–0 | 0–1 |
| Boca Juniors | 1–5 | Atlético Nacional | 0–1 | 1–4 |
| Santos | 2–3 | Cienciano | 1–1 | 1–2 |
| The Strongest | 2–7 | São Paulo | 1–4 | 1–3 |

## Semifinals

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| River Plate | 3–3 (4–2 p) | São Paulo | 3–1 | 0–2 |
| Atlético Nacional | 1–3 | Cienciano | 1–2 | 0–1 |