Career
Previously he has played for a number of clubs in Argentina, Italy, Russia, Paraguay and Brazil and represented the Argentina national football team in 2003, being called up again for the second leg of the 2011 Superclásico de las Américas. Guiñazu started his professional career with Newell"s Old Boys in 1996, he played over 100 games for the club before joining Italian side Perugia. He returned to Argentina in 2001 to play for where he was part of the Apertura 2002 championship team
In 2003 he returned to Newell"s Old Boys before joining Russian team Saturn.
In 2007 Guiñazu joined in Brazil. On January 4, 2013, he terminated his contract with International for private reasons, and returned to of Paraguay.
He returned to Argentina in 2016 after signing for Talleres de Córdoba. Club Copa ores: 2010 Individual.