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 CountryTeamQualification methodCONMEBOL(1 berth)Olimpia1990 Copa Libertadores champion(2 berths)River Plate1989–90 Primera División championBoca Juniors1989–90 Liguilla Pre-Libertadores winner(2 berths)Oriente Petrolero1990 Primera División championBolívar1990 Primera División runner-up(2 berths)Corinthians1990 Campeonato Brasileiro Série A championFlamengo1990 Copa do Brasil champion(2 berths)Colo-Colo1990 Primera División championDeportes Concepción1990 Liguilla Pre-Libertadores winner(2 berths)América de Cali1990 Campeonato Profesional championAtlético Nacional1990 Campeonato Profesional runner-up(2 berths)LDU Quito 1990 Campeonato Ecuatoriano championBarcelona 1990 Campeonato Ecuatoriano runner-up(2 berths)Cerro Porteño1990 Primera División championColegiales1991 Pre-Libertadores playoff winner(2 berths)Universitario1990 Primera División championSport Boys1990 Primera División runner-up(2 berths)Nacional1990 Liguilla Pre-Libertadores winnerBella Vista1990 Liguilla Pre-Libertadores runner-up(2 berths)Marítimo1989–90 Primera División championUnión Atlético Táchira1989–90 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 1 Group 2 Group 3 Group 4 Group 5
Group stage Group 1
Group 2
Group 3
Group 4
Group 5
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.
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.
Semifinals First leg matches played on May 16, 1991. Second leg matches played on May 22 and May 23, 1991.
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.
Colo-Colo won 3-0 on aggregate.
Champion
External links
1991 Copa Libertadores at RSSSF.com Detailed match reports at RSSSF.com