The finals were played on a home-and-away two-legged basis, with the higher-seeded team hosting the second leg.

Paolo Guerrero (Flamengo), provisionally suspended for failing doping test, missed the first leg.

[3] On 7 December 2017, the FIFA Disciplinary Committee decided to suspend Guerrero for one year, missing the second leg.

Seven minutes after halftime, Barco crossed from the left side and Maximiliano Meza scored the winning goal with a right-footed volley.

Eduardo Cardozo (Paraguay) Lucas Paquetá opened the scoring meters away from the line in the 29th minute after a low cross from Réver.