 After several impressive performances, the former River Plate player, was scouted by Boca Juniors, but before moving to Boca's youth divisions he played for "Fútbol Juvenil FC".In the summer of 2003, Ledesma officially transferred to Boca Juniors at the age of 19.His debut for Boca was on July 12, 2003 when Boca lost 2–1 to Colón de Santa Fe.