Martínez made his only appearance for Charleston in a playoff loss to Louisville City before leaving the club at the end of 2015.
In March 2016, Martínez signed for North American Soccer League side Miami FC ahead of its inaugural season.
[5] On 19 April, 2022, Hartford Athletic announced that they had signed Martínez for the remainder of the 2022 season, pending league and federation approval.
[9] Martínez made his debut for Cuba in a September 2006 Gold Cup qualification match against the Turks and Caicos Islands.
On 17 July 2015, it was confirmed that Martinez had, alongside teammates Keyler García, Arael Argüelles and Darío Suárez, defected to the United States following Cuba's victory over Guatemala in the CONCACAF Gold Cup.