San Lorenzo moved top of the Argentinian Clausura table following a late 2-1 comeback victory over All Boys.
Javier Campora put All Boys ahead after 17 minutes and San Lorenzo needed until the final 10 minutes of the match to hit back, but they did so through second-half substitute Mauro Matos and Walter Kannemann.
River Plate dropped down to fourth after a 2-1 defeat at Belgrano Cordoba. Jorge Velazquez gave the home side the lead in the 14th minute and, although Teofilo Gutierrez equalised four minutes later, Lucas Zelarrayan grabbed the winner for Belgrano with five minutes to go.
Rosario Central scraped a 1-0 triumph over Newell's Old Boys - courtesy of Franco Niell's second-half winner - which lifted them to eighth.
Boca Juniors defeated fifth-placed Godoy Cruz 3-0, penalties from Juan Riquelme and Emanuel Gigliotti starting and finishing the scoring with Gigliotti bagging another goal in between. Godoy's cause was not helped by the dismissal of goalkeeper Jorge Carranza 10 minutes from time.
Struggling Quilmes remained second from bottom despite battling from two goals down to draw 2-2 at Atletico Rafaela. Sebastian Martinez and Cristian Lema grabbed the point for the visitors with goals midway through the second half after strikes from Andres Rodales and Alexis Niz either side of half-time had put the hosts in the ascendancy.
Finally, an 84th-minute strike from Sergio Araujo propelled Tigre to a 1-0 success at Arsenal Sarandi which saw them move three points clear of their bottom-of-the-table hosts.