The 2018 Copa Sudamericana second stage was played from 17 July to 16 August 2018.[1] A total of 32 teams competed in the second stage to decide the 16 places in the final stages of the 2018 Copa Sudamericana.[2]
The draw for the second stage was held on 4 June 2018, 20:00 PYT (UTC−4), at the CONMEBOL Convention Centre in Luque, Paraguay.[3][4] For the second stage, the teams were allocated to two pots according to their previous results in this season:[5]
Pot 1: 10 teams transferred from the Copa Libertadores and six best winners of the first stage from the Copa Sudamericana
Pot 2: 16 remaining winners of the first stage from the Copa Sudamericana
The 32 teams were drawn into 16 ties (O1–O16) between a team from Pot 1 and a team from Pot 2, with the teams from Pot 1 hosting the second leg. Teams from the same association could be drawn into the same tie.[6]
The following were the 10 teams transferred from the Copa Libertadores (two best teams eliminated in the third stage of qualifying and eight third-placed teams in the group stage).
The following were the 22 winners of the first stage from the Copa Sudamericana. Matches in the first stage were considered for the ranking of teams for the second stage draw.
In the second stage, each tie was played on a home-and-away two-legged basis. If tied on aggregate, the away goals rule would be used. If still tied, extra time would not be played, and the penalty shoot-out would be used to determine the winner (Regulations Article 27).[2]
The 16 winners of the second stage advanced to the round of 16 of the knockout stages.
Matches[]
The first legs were played on 17–19, 25–26 July, and 1–2 August, and the second legs were played on 24, 31 July, 1–2, 7–9 and 14–16 August 2018.[7][8]
CONMEBOL awarded San Lorenzo a 3–0 win as a result of Deportes Temuco fielding the ineligible player Jonathan Requena. The match originally ended 1–2.[9]