Argentine club Tigre and Millonarios of Colombia drew 0-0 in their first-leg semifinal of the Copa Sudamerica on Thursday.
The return leg is Thursday at Colombia with the overall winner advancing to the final of South America's No. 2 club tournament.
In Thursday's other first-leg semifinal, Chile's Universidad Catolica drew 1-1 in Santiago, Chile, against Sao Paulo of Brazil.
The advantage with the draw probably goes to Millonarios. The Colombian capital Bogota is located at 2,650 meters (8,700 feet), a high-altitude venue that is always difficult for visiting teams.
''The draw lets us relax,'' Millonarios midfielder Mayer Candelo said.
Millonarios' defense shut down Tigre.
''The most important thing was a victory, but we couldn't get it,'' Tigre midfielder Mariano Echeverria said. ''We hardly had any chances to score.''
