2025 Copa Sudamericana final stages
The 2025 Copa Sudamericana final stages were played from 15 July to 22 November 2025. A total of 24 teams competed in the [|final] stages to decide the champions of the 2025 Copa Sudamericana, with the final played at Estadio Defensores del Chaco in Asunción, Paraguay.
Qualified teams
The winners and runners-up of each of the eight groups in the Copa Sudamericana group stage as well as the third-placed teams of each of the eight groups in the Copa Libertadores group stage advanced to the final stages. The eight Copa Sudamericana group runners-up faced the eight Copa Libertadores group third-placed teams in the knockout round play-offs, whilst the eight Copa Sudamericana group winners directly advanced to the round of 16.Seeding
For the final stages, the teams were seeded according to their results in the group stage, with the Copa Sudamericana group winners seeded 1–8, the Copa Sudamericana group runners-up seeded 9–16, and the Copa Libertadores group third-placed teams seeded 17–24. For the round of 16 draw, the seeds 1–8 made up Pot 1, and the eight knockout round play-offs winners made up Pot 2, keeping their seed. Teams from the same association may play each other from the knockout round play-offs onwards.
Format
Starting from the knockout round play-offs, the teams play a single-elimination tournament with the following rules:
- In the knockout round play-offs, round of 16, quarter-finals and semi-finals, each tie is played on a home-and-away two-legged basis, with the higher-seeded team hosting the second leg. If tied on aggregate, extra time will not be played, and a penalty shoot-out will be used to determine the winners.
- The final is played as a single match at a venue pre-selected by CONMEBOL, with the higher-seeded team designated as the "home" team for administrative purposes. If tied after regulation, 30 minutes of extra time will be played. If still tied after extra time, a penalty shoot-out will be used to determine the winners.
Draw
The draw for the round of 16 was held on 2 June 2025, 12:00 PYT at the CONMEBOL headquarters in Luque, Paraguay. For the round of 16, the 16 teams were drawn into eight ties between a Copa Sudamericana group winner and a knockout round play-offs winner, with the group winners hosting the second leg. Teams from the same association or the same group could be drawn into the same tie.
Bracket
The bracket starting from the round of 16 is determined as follows:| Round | Matchups |
| Knockout round play-offs |
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| Round of 16 |
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| Quarter-finals |
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| Semi-finals |
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| Finals |
|
The bracket was decided based on the round of 16 draw, which was held on 2 June 2025.
Knockout round play-offs
Summary
The first legs were played on 15–17 July, and the second legs were played on 22–24 July 2025.Matches
Alianza Lima won 3–1 on aggregate and advanced to the round of 16.----
Once Caldas won 7–0 on aggregate and advanced to the round of 16.
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Tied 1–1 on aggregate, Atlético Mineiro won on penalties and advanced to the round of 16.
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Bolívar won 6–0 on aggregate and advanced to the round of 16.
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América de Cali won 2–0 on aggregate and advanced to the round of 16.
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Independiente del Valle won 5–1 on aggregate and advanced to the round of 16.
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Universidad de Chile won 6–2 on aggregate and advanced to the round of 16.
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''Central Córdoba won 3–0 on aggregate and advanced to the round of 16.''
Round of 16
Summary
The first legs were played on 12–14 August, and the second legs were played on 19–21 August 2025.Matches
Alianza Lima won 4–1 on aggregate and advanced to the quarter-finals.----
Bolívar won 4–0 on aggregate and advanced to the quarter-finals.
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Once Caldas won 4–1 on aggregate and advanced to the quarter-finals.
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Fluminense won 4–1 on aggregate and advanced to the quarter-finals.
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Tied 1–1 on aggregate, Lanús won on penalties and advanced to the quarter-finals.
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Tied 2–2 on aggregate, Independiente del Valle won on penalties and advanced to the quarter-finals.
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Atlético Mineiro won 3–1 on aggregate and advanced to the quarter-finals.
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''Independiente was disqualified from the competition and Universidad de Chile advanced to the quarter-finals.''
Quarter-finals
Summary
The first legs were played on 16–18 September, and the second legs were played on 23–25 September 2025.Matches
Universidad de Chile won 2–1 on aggregate and advanced to the semi-finals.----
Atlético Mineiro won 3–2 on aggregate and advanced to the semi-finals.
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Tied 2–2 on aggregate, Independiente del Valle won on penalties and advanced to the semi-finals.
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''Lanús won 2–1 on aggregate and advanced to the semi-finals.''
Semi-finals
Summary
The first legs were played on 21 and 23 October, and the second legs were played on 28 and 30 October 2025.Matches
Lanús won 3–2 on aggregate and advanced to the final.----
''Atlético Mineiro won 4–2 on aggregate and advanced to the final.''