The 2017 Copa Libertadores final stages were played from 4 July to 29 November 2017.[1] A total of 16 teams competed in the final stages to decide the champions of the 2017 Copa Libertadores.[2]
The winners and runners-up of each of the eight groups in the group stage advanced to the round of 16.
| Group | width=200 | Winners | width=200 | Runners-up |
|---|---|---|---|---|
| 1 |  Botafogo |  Barcelona | ||
| 2 | Santos |  The Strongest | ||
| 3 |  River Plate | Emelec | ||
| 4 | San Lorenzo | Atlético Paranaense | ||
| 5 | Palmeiras | Jorge Wilstermann | ||
| 6 | Atlético Mineiro | Godoy Cruz | ||
| 7 | Lanús | Nacional | ||
| 8 | Grêmio | Guaraní |
Starting from the round of 16, the teams were seeded according to their results in the group stage, with the group winners (Pot 1 in round of 16 draw) seeded 1–8, and the group runners-up (Pot 2 in round of 16 draw) seeded 9–16.
Starting from the round of 16, the teams played a single-elimination tournament with the following rules:[2]
There were two format changes from the previous season:
The draw for the round of 16 was held on 14 June 2017, 20:00 PYT (UTC−4), at the CONMEBOL Convention Center in Luque, Paraguay.[3] For the round of 16, the 16 teams were drawn into eight ties (A–H) between a group winner (Pot 1) and a group runner-up (Pot 2), with the group winners hosting the second leg. Teams from the same association or the same group could be drawn into the same tie.[4]
The bracket starting from the round of 16 was determined as follows:[4]
| Round | Matchups | |
|---|---|---|
| Round of 16 | (Group winners host second leg, matchups decided by draw)
| |
| Quarterfinals | (Higher-seeded team host second leg)
| |
| Semifinals | (Higher-seeded team host second leg)
| |
| Finals | (Higher-seeded team host second leg)
|
The first legs were played on 4–6 July, and the second legs were played on 8–10 August 2017.[5] |}
----River Plate won 3–1 on aggregate and advanced to the quarterfinals (Match S1).
----Santos won 4–2 on aggregate and advanced to the quarterfinals (Match S2).
----Botafogo won 3–0 on aggregate and advanced to the quarterfinals (Match S3).
----Tied 1–1 on aggregate, San Lorenzo won on penalties and advanced to the quarterfinals (Match S4).
----Lanús won 2–1 on aggregate and advanced to the quarterfinals (Match S4).
----Grêmio won 3–1 on aggregate and advanced to the quarterfinals (Match S3).
----Tied 1–1 on aggregate, Barcelona won on penalties and advanced to the quarterfinals (Match S2).
----Jorge Wilstermann won 1–0 on aggregate and advanced to the quarterfinals (Match S1).
The first legs were played on 13–14 September, and the second legs were played on 20–21 September 2017.[6] |}
----River Plate won 8–3 on aggregate and advanced to the semifinals (Match F1).
----Barcelona won 2–1 on aggregate and advanced to the semifinals (Match F2).
----Grêmio won 1–0 on aggregate and advanced to the semifinals (Match F2).
----Tied 2–2 on aggregate, Lanús won on penalties and advanced to the semifinals (Match F1).
The first legs were played on 24–25 October, and the second legs were played on 31 October and 1 November 2017.[7] |}
----Lanús won 4–3 on aggregate and advanced to the finals.
----Grêmio won 3–1 on aggregate and advanced to the finals.
See main article: article and 2017 Copa Libertadores Finals.
In the finals, if tied on aggregate, the away goals rule would not be used, and 30 minutes of extra time would be played. If still tied after extra time, the penalty shoot-out would be used to determine the winner (Regulations Article 5.3).
The first leg was played on 22 November, and the second leg was played on 29 November 2017.[8] ----Grêmio won 3–1 on aggregate.