Estudiantes go top, first win for Santa Fe
Estudiantes came from behind to win 2-1 at Godoy Cruz and claim a share of top spot in the early Apertura standings.
Leandro Gonzalez netted a 90th-minute winner for the La Plata club, who fell behind in the eighth minute when Diego Villar opened the scoring for the hosts.
Francisco Dutari's own goal brought Estudiantes level, and their cause was helped by the dismissal of Carlos Sanchez for Godoy Cruz with five minutes to go.
In Friday's other match, Colon Santa Fe claimed their first win of the Apertura campaign as Joaquin Larrivey's goal five minutes before half-time secured a 2-1 success at Racing Club.