| Group 4 | 19/02/1991 | Atlético Colegiales | - | Cerro Porteño | 1:1 | ||||
| Group 4 | 18/03/1991 | Sport Boys | - | Cerro Porteño | 1:3 | ||||
| Decider 1. Round | 09/04/1991 | Cerro Porteño | - | Atlético Colegiales | 1:0 | ||||
| Round of 16 | 18/04/1991 | Oriente Petrolero | - | Cerro Porteño | 1:1 | ||||
| Round of 16 | 23/04/1991 | Cerro Porteño | - | Oriente Petrolero | 2:0 | ||||
| Quarter-finals | 01/05/1991 | Cerro Porteño | - | Club Olimpia | 1:0 | ||||
| Quarter-finals | 07/05/1991 | Club Olimpia | - | Cerro Porteño | 3:0 |
Paraguay