1991 Supercopa Libertadores#First round

Up until the middle of 1991, 15 teams had won the Copa Libertadores at least once since its inaugural season in 1960; however, only 14 teams participated as Atlético Nacional declined to play in the tournament.

{{4RoundBracket|seeds=no|legs=2|byes=2|nowrap=y

| RD1=First round

| RD2=Quarter-finals

| RD3=Semi-finals

| RD4=Finals

| RD1-team01={{flagicon|BRA}} Grêmio

| RD1-score01-1=2

| RD1-score01-2=1 (3)

| RD1-team02={{flagicon|ARG}} River Plate

| RD1-score02-1=2

| RD1-score02-2=1 (4)

| RD1-team03={{flagicon|ARG}} Estudiantes

| RD1-score03-1=1

| RD1-score03-2=0

| RD1-team04={{flagicon|BRA}} Flamengo

| RD1-score04-1=1

| RD1-score04-2=2

| RD1-team05={{flagicon|ARG}} Racing

| RD1-score05-1=2

| RD1-score05-2=0

| RD1-team06={{flagicon|URU}} Peñarol

| RD1-score06-1=3

| RD1-score06-2=0

| RD1-team07={{flagicon|BRA}} Santos

| RD1-score07-1=2

| RD1-score07-2=0

| RD1-team08={{flagicon|ARG}} Argentinos Juniors

| RD1-score08-1=1

| RD1-score08-2=0

| RD1-team09={{flagicon|CHI}} Colo-Colo

| RD1-score09-1=0

| RD1-score09-2=0 (3)

| RD1-team10={{flagicon|BRA}} Cruzeiro

| RD1-score10-1=0

| RD1-score10-2=0 (4)

| RD1-team11={{flagicon|URU}} Nacional

| RD1-score11-1=1

| RD1-score11-2=0

| RD1-team12={{flagicon|ARG}} Boca Juniors

| RD1-score12-1=1

| RD1-score12-2=2

| RD2-team01={{flagicon|ARG}} River Plate

| RD2-score01-1=1

| RD2-score01-2=1 (4)

| RD2-team02={{flagicon|BRA}} Flamengo

| RD2-score02-1=0

| RD2-score02-2=2 (3)

| RD2-team03={{flagicon|URU}} Peñarol

| RD2-score03-1=3

| RD2-score03-2=0

| RD2-team04={{flagicon|BRA}} Santos

| RD2-score04-1=2

| RD2-score04-2=0

| RD2-team05={{flagicon|BRA}} Cruzeiro

| RD2-score05-1=4

| RD2-score05-2=0

| RD2-team06={{flagicon|URU}} Nacional

| RD2-score06-1=0

| RD2-score06-2=3

| RD2-team07={{flagicon|PAR}} Olimpia

| RD2-score07-1=1

| RD2-score07-2=2

| RD2-team08={{flagicon|ARG}} Independiente

| RD2-score08-1=1

| RD2-score08-2=0

| RD3-team01={{flagicon|ARG}} River Plate

| RD3-score01-1=2

| RD3-score01-2=3

| RD3-team02={{flagicon|URU}} Peñarol

| RD3-score02-1=0

| RD3-score02-2=1

| RD3-team03={{flagicon|BRA}} Cruzeiro

| RD3-score03-1=1

| RD3-score03-2=0 (5)

| RD3-team04={{flagicon|PAR}} Olimpia

| RD3-score04-1=1

| RD3-score04-2=0 (4)

| RD4-team01={{flagicon|ARG}} River Plate

| RD4-score01-1=2

| RD4-score01-2=0

| RD4-team02={{flagicon|BRA}} Cruzeiro

| RD4-score02-1=0

| RD4-score02-2=3

}}

Teams from the same nation could not be drawn against one another. Olimpia, as the title holders, entered the competition at the quarterfinal stage. Independiente also advanced to that same stage after the initial draw.

{{TwoLeg start}}

{{TwoLegResult|River Plate|ARG|3–3 (4-3 p)|Grêmio|BRA|2–2|1–1}}

{{TwoLegResult|Peñarol|URU|3–2|Racing|ARG|3–2|0–0}}

{{TwoLegResult|Argentinos Juniors|ARG|1–2|Santos|BRA|1–2|0–0}}

{{TwoLegResult|Flamengo|BRA|3–1|Estudiantes|ARG|1–1|2–0}}

{{TwoLegResult|Cruzeiro|BRA|0–0 (4-3 p)|Colo-Colo|CHI|0–0|0–0}}

{{TwoLegResult|Boca Juniors|ARG|1–3|Nacional|URU|1–1|0–2}}

|}

{{TwoLeg start}}

{{TwoLegResult|Peñarol|URU|3–2|Santos|BRA|3–2|0–0}}

{{TwoLegResult|River Plate|ARG|2–2 (4-3 p)|Flamengo|BRA|1–0|1–2}}

{{TwoLegResult|Cruzeiro|BRA|4–3|Nacional|URU|4–0|0–3}}

{{TwoLegResult|Independiente|ARG|1–3|Olimpia|PAR|1–1|0–2}}

|}

{{TwoLeg start}}

{{TwoLegResult|River Plate|ARG|5–1|Peñarol|URU|2–0|3–1}}

{{TwoLegResult|Cruzeiro|BRA|1–1 (5-4 p)|Olimpia|PAR|1–1|0–0}}

|}

{{main|1991 Supercopa Libertadores Finals}}

{{TwoLeg start}}

{{TwoLegResult|River Plate|ARG|2–3|Cruzeiro|BRA|2–0|0–3}}

|}

• 1991 Copa Libertadores

• [https://www.rsssf.org/sacups/supcopa91.html RSSSF]

{{Supercopa Sudamericana Seasons}}

Category:Supercopa Libertadores

2