Born in Argentina, Facundo Javier Perez Castro is a professional footballer who plays as a midfielder. Castro came through the famed youth system at Argentinos Juniors and made his professional debut with the first team in 1999. He was in and out of the side till he started establishing himself in the first team, notching up almost 200 appearances in the process. In 2007, he moved to Gimnasia y Esgrima de Jujuy but after a relatively weak year, was placed into the reserves. But after a change in management, Castro came back into the line-up and made the most of it, scoring his first goal for the team as well. In 2008, Castro moved to Atletico San Martin in the hope of getting more on-field action.