An Argentine defender from Buenos Aires, Nicolas Gabriel Sanchez began playing football with Nueva Chicago. He made his debut in the top division in the 2003-04 season. But Nueva Chicago faced relegation that season, and Sanchez soon managed to find his way in to the first team for two seasons that the club remained in the Primera B Nacional. In the 2006-07 season, the club returned to the top flight, and by the end were back in the Primera B Nacional. But Sanchez made his move to the top division giants River Plate at the start of the 2007-08 season. He appeared in the Clausura 2008 with the team.