Two-time champions Internacional opened their Copa Libertadores campaign with a 2-0 victory over Peru's Juan Aurich, while compatriots Alianza Lima also suffered defeat with Paraguay's Libertad comfortable victors.
Uruguay's Nacional began their Copa Libertadores campaign impressively with a 2-1 victory at Brazil's Vasco da Gama in a meeting of two former champions, while there was also wins for Union Espanola and Cruz Azul.
The group stage of the Copa Libertadores gets underway with Vasco da Gama hosting Nacional and fellow former champions Internacional, Olimpia and Velez Sarsfield in action.
South American U-20 Women's Championship
Brazil made it five trophies from five editions of the South American U-20 Women’s Championship with customary ease, while Argentina finished runners-up to join their arch-rivals in booking a trip to the world finals in Japan.
Featuring Jeremie Janot on keeping warm during games, Ricardo Rocha on how his humorous mistake helped Brazil in 1994, Martin O’Neill on how his French sounds South Korean and Michael Rensing on Cologne’s disease.
Last year's finalists Penarol of Uruguay and Chile's Union Espanola qualified for the Copa Libertadores' group stage after winning against Caracas and Tigres respectively.
South American U-20 Women’s Championship