 Estudiantes applied for Galván's services again, and he was transferred back to the "pincharratas" (this time not on loan) in July 2007.In a friendly match against Paraguayan side Libertad, played 29 July 2007, Galván made a wrong movement while disputing the ball and injuring his left knee (he was diagnosed with a ruptured anterior cruciate ligament).Galván missed seven months of play, and resumed playing (mostly as a substitute) in early 2008.