Carlos Martínez Fernández (born 13 November 1980) is a Spanish retired footballer who played as a left winger, and is a current manager.

[2] He made his professional debut on 29 August of that year at the age of 29, coming on as a second-half substitute for goalscorer Fernando Sales in a 1–1 away draw against Albacete Balompié.

[4] In July of the following year, after being sparingly used, he returned to his former side Leganés, scoring a career-best 11 goals in his first season and helping the team achieve promotion in his second.

Shortly after retiring, Martínez started working as a fitness coach in Atlético Madrid's youth setup, before moving to China and Saudi Arabia.

[6] He moved to the first team after Cembranos took over the main squad in an interim manner, but remained in the staff after the appointment of Javier Aguirre.