1991 Copa Libertadores de América

Libertadores 1991
Tournament details
Dates	February 20 – June 5
Teams	21 (from 10 associations)
Final positions
Champions	Colo-Colo (1st title)
Runners-up	Olimpia
Tournament statistics
Matches played	90
Goals scored	221 (2.46 per match)
Top scorer(s)	Gaúcho (8 goals)
← 1990 1992 →

The 1991 Copa Libertadores was won by Colo-Colo of Chile after defeating Olimpia of Paraguay with a 3–0 aggregate score in the finals. The championship would mark a first for a Chilean club team in an international tournament. Twenty-one clubs from all South American countries within Confederación Sudamericana de Fútbol (CONMEBOL) participated.

Qualified teams

Country	Team	Qualification method
CONMEBOL (1 berth)	Olimpia	1990 Copa Libertadores champion
Argentina (2 berths)	River Plate	1988–89 Primera División champion
	Boca Juniors	1989–90 Liguilla Pre-Libertadores winner
Bolivia (2 berths)	Oriente Petrolero	1990 Primera División champion
	Bolívar	1990 Primera División runner-up
Brazil (2 berths)	Corinthians	1990 Campeonato Brasileiro Série A champion
	Flamengo	1990 Copa do Brasil champion
Chile (2 berths)	Colo-Colo	1990 Primera División champion
	Deportes Concepción	1990 Liguilla Pre-Libertadores winner
Colombia (2 berths)	América de Cali	1990 Campeonato Profesional champion
	Atlético Nacional	1990 Campeonato Profesional runner-up
Ecuador (2 berths)	LDU Quito	1990 Campeonato Ecuatoriano champion
	Barcelona	1990 Campeonato Ecuatoriano runner-up
Paraguay (2 berths)	Cerro Porteño	1990 Primera División champion
	Colegiales	1991 Pre-Libertadores playoff winner
Peru (2 berths)	Universitario	1990 Primera División champion
	Sport Boys	1990 Primera División runner-up
Uruguay (2 berths)	Nacional	1990 Liguilla Pre-Libertadores winner
	Bella Vista	1990 Liguilla Pre-Libertadores runner-up
Venezuela (2 berths)	Marítimo	1989–90 Primera División champion
	Unión Atlético Táchira	1989–90 Primera División runner-up

Draw

The champions and runners-up of each football association were drawn into the same group along with another football association's participating teams. Three clubs from Paraguay competed as Olimpia was champion of the 1990 Copa Libertadores. They entered the tournament in the Second round.

Group stage

Group 1

Group 1 standings

Pos	Team	Pld	W	D	L	GF	GA	GD	Pts	Qualification		BOL	BOC	OPE	RIV
1	Bolívar	6	3	1	2	9	5	+4	7	Round of 16		—	2–0	2–0	4–1
2	Boca Juniors	6	2	2	2	6	6	0	6			0–0	—	0–0	4–3
3	Oriente Petrolero	6	2	2	2	5	7	−2	6			2–1	1–0	—	1–1
4	River Plate	6	2	1	3	10	12	−2	5			2–0	0–2	3–1	—

Group 2

Group 2 standings

Pos	Team	Pld	W	D	L	GF	GA	GD	Pts	Qualification		CC	LDQ	CON	BSC
1	Colo-Colo	6	3	3	0	10	3	+7	9	Round of 16		—	3–0	2–0	3–1
2	LDU Quito	6	2	2	2	5	6	−1	6			0–0	—	4–0	0–0
3	Deportes Concepción	6	2	2	2	6	8	−2	6			0–0	3–0	—	1–0
4	Barcelona	6	0	3	3	5	9	−4	3			2–2	0–1	2–2	—

Group 3

Group 3 standings

Pos	Team	Pld	W	D	L	GF	GA	GD	Pts	Qualification		FLA	COR	NAC	BVI
1	Flamengo	6	3	3	0	11	4	+7	9	Round of 16		—	1–1	4–0	1–1
2	Corinthians	6	1	4	1	7	6	+1	6			0–2	—	0–0	4–1
3	Nacional	6	2	2	2	7	6	+1	6			0–1	1–1	—	3–0
4	Bella Vista	6	0	3	3	5	14	−9	3			2–2	1–1	0–3	—

Group 4

Group 4 standings

Pos	Team	Pld	W	D	L	GF	GA	GD	Pts	Qualification		COL	CCP	UNI	SBA
1	Colegiales	6	2	4	0	10	5	+5	8	Round of 16		—	1–1	2–0	4–1
2	Cerro Porteño	6	2	4	0	9	4	+5	8			1–1	—	0–0	3–0
3	Universitario	6	1	3	2	4	6	−2	5			0–0	1–1	—	1–3
4	Sport Boys	6	1	1	4	7	15	−8	3			2–2	1–3	0–2	—

Group 5

Group 5 standings

Pos	Team	Pld	W	D	L	GF	GA	GD	Pts	Qualification		AME	NAC	TAC	MAR
1	América de Cali	6	5	1	0	10	3	+7	11	Round of 16		—	1–0	3–2	2–0
2	Atlético Nacional	6	2	2	2	7	7	0	6			0–2	—	0–0	2–2
3	Unión Atlético Táchira	6	1	3	2	6	7	−1	5			1–1	1–2	—	2–1
4	Marítimo	6	0	2	4	4	10	−6	2			0–1	1–3	0–0	—

• Colombian club teams América, and Atlético Nacional were unable to play at their home venues. Their games were held in Miami, Florida and San Cristóbal, Venezuela.

Round of 16

• The top three teams in every group qualified along with Olimpia the champion of Copa Libertadores 1990
• First leg matches were played on April 16 and April 17, 1991. Second leg matches were played on April 24 and April 25, 1991.

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
Nacional	5–2	Bolívar	4–1	1–1
Universitario	1–2	Colo-Colo	0–0	1–2
Deportivo Táchira	2–8	Flamengo	2–3	0–5
Boca Juniors	4–2	Corinthians	3–1	1–1
Deportes Concepción	3–6	América de Cali	0–3	3–3
LDU Quito	2–4	Atlético Nacional	2–2	0–2
Olimpia	3–2	Colegiales	1–1	2–1
Oriente Petrolero	1–3	Cerro Porteño	1–1	0–2

Quarterfinals

• First leg matches were played on May 1, May 2, and May 3, 1991. Second leg matches played on May 8 and May 10, 1991.

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
Colo-Colo	4–2	Nacional	4–0	0–2
Flamengo	2–4	Boca Juniors	2–1	0–3
América de Cali	0–2	Atlético Nacional	0–0	0–2
Cerro Porteño	1–3	Olimpia	1–0	0–3

Semifinals

• First leg matches played on May 16, 1991. Second leg matches played on May 22 and May 23, 1991.

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
Boca Juniors	2–3	Colo-Colo	1–0	1–3
Atlético Nacional	0–1	Olimpia	0–0	0–1

Finals

First leg match played on May 29, 1991, in Asunción, Paraguay at Defensores del Chaco stadium. Second leg final match played on June 5, 1991, in Santiago, Chile at Estadio Monumental David Arellano.

Olimpia v Colo-Colo

May 29, 1991	Olimpia	0–0	Colo-Colo	Estadio Defensores del Chaco, Asunción
21:45				Attendance: 48.000 Referee: Ernesto Filippi (Uruguay)

Colo-Colo v Olimpia

June 5, 1991	Colo-Colo	3–0	Olimpia	Estadio Monumental David Arellano, Santiago
20:30	Pérez 12', 17' Herrera 85'			Attendance: 66.517 Referee: José Roberto Wright (Brazil)

Colo-Colo won 3-0 on aggregate.

Champion

Copa Libertadores 1991 winners
Colo-Colo 1st title