Career
Born in Béccar, Martínez joined "s youth setup in 2001, after starting it out at Atlético Béccar. In July 2011 he signed his first professional contract, with a €10 million clause after being linked to Arsenal and Football Club Barcelona. On 24 April 2013 Martínez made his first team debut, coming on as a second-half substitute for Mauro Díaz in a 0–1 Copa Argentina home loss against Estudiantes Buenos Aires.
On 18 August 2015 Martínez was loaned to Segunda División side Civil Defense Tenerife, in a season-long deal.
Club International.