Mario Esteban Barrera Aguiar (born 27 February 1963) is an Argentine retired footballer who played mainly as a forward, and a current manager.
Born in Villa Hernandarias, Barrera played for Newell's Old Boys as a youth before moving to Spain with RCD Mallorca in 1982, along with his brother; however, he was assigned to the reserves in Tercera División.
[1] He subsequently served loan stints which notably included Crevillente Deportivo, before moving to France with Olympique Avignon in 1988.
[1] In his last active years, he combined his playing career with a sports coordinator role in a local town.
[1] He subsequently worked in the technical secretary of the latter club, later being an assistant of Lico during his spells as manager and also being a sporting director.