The group stage of the Copa Libertadores begins this week with 10 matches across Latin America.

The last teams six clubs rounding out the field of 32 were decided last week: Arsenal of Argentina, Flamengo and Internacional from Brazil, Penarol of Uruguay, Libertad of Paraguay and Union Espanola of Chile.

Play in the eight groups begins on Tuesday with Arsenal at Fluminense of Brazil, Velez of Argentina at Defensor Sporting of Uruguay, and Deportivo Quito at Chivas of Mexico.

The Copa Libertadores was won last year by Brazil’s Santos.

On Wednesday, Nacional of Uruguay are at Brazil’s Vasco da Gama, Libertad of Paraguay are home against Peru’s Alianza Lima, and Nacional of Paraguay – there are two clubs named Nacional in the tournament – is home against Mexico’s Cruz Azul.

On Thursday, Internacional of Brazil are at home playing Juan Aurich of Peru, Ecuador’s Emelec are host to Olimpia of Paraguay, Union Espanola of Chile are home against Junior of Colombia, and Universidad Catolica of Chile are host to Bolivar of Bolivia.

Group play ends in April with the top two in each group advancing to the round of 16.