LIMA, Feb 26 (Reuters) - Argentine midfielder Dario Botinelli guided Chile's Universidad Catolica to a 1-0 win at Peruvian champions Deportivo San Martin in Group Five of the South American Libertadores Cup on Tuesday.
Universidad Catolica dominated the early action and Botinelli made the pressure tell with a well-taken goal on 30 minutes.
Deportivo San Martin had more possession in the second half but were unable to break down a resolute Chilean defence.
Both clubs are on three points. Universidad Catolica lost 2-1 to Mexico's America in the first game while Deportivo beat Argentina's River Plate 2-0.
In Venezuela, Caracas FC clinched a 2-1 home win against Bolivia's Real Potosi in a Group One match.
Emilio Renteria scored after two minutes and Ronald Vargas increased the lead before Gonzalo Galindo pulled one back for the Bolivians with a free kick that floated beyond goalkeeper Vicente Rosales.
Renteria continued to trouble Caracas and crashed two shots against the crossbar.
The Venezuelan club played the second half with 10 men after Vargas was dismissed for an ugly tackle but Real Potisi's meandering midfield play failed to pay dividends.
Caracas lead the group with a 100 percent record after two games, ahead of Brazil's Cruzeiro on four points.
The all-Argentine clash between Estudiantes-La plata and Lanus ended in a 0-0 stalemate in Group Two.