Born in Buenos Aires, Martínez moved to Italy at young age. He was a member of Parma's Primavera under-20 team. At age 18, he was offered a professional contract of reported 5-year (or 3+2 years, as N.O.I.F. of FIGC only allowed a maximun of 3-year for Italians "young professional"). He made his Serie A debut on 27 April 2008, replaced Cristiano Lucarelli at 2nd half, at that time Parma already losing to Reggina 1–2. His primavera team-mate Aleksandar Prijović also substituted Daniele Dessena on that match, and Parma eventually 1–2 lost with Reggina. Parma relegated to Serie B in June and Martínez was loaned to Ternana in August 2008. He failed to made his club debut and left for Carpenedolo in January 2009. On 1 September 2009 he left for South Tyrol but in December 2009 returned to Parma for family reason. In January 2010 he left for Swiss 1. Liga side Biaschesi.

Source: http://www.facebook.com/pages/Leandro-Martinez/148460728514443