Velez moved up to second in the Argentinian Clausura with a 2-1 win over Olimpo, Tigre beat nine-man Racing Club 2-1, while Newell's Old Boys recovered a two-goal deficit to draw with Arsenal Sarandi.
Argentina's Velez Sarsfield have moved off the bottom of a tight Copa Libertadores Group 4 and into second following a crucial 2-1 home win over Chile's Union Espanola.
Velez Sarsfield overwhelmed Venezuela's Deportivo Italia 4-0 to reach the last 16 of the Copa Libertadores.
