|Full name||Mathías Nicolás Abero Villan|
|Date of birth||9 April 1990|
|Place of birth||Montevideo, Uruguay|
|Height||1.84 m (6 ft 0 in)|
|Playing position||Left back|
|Atlético de Rafaela|
|2010–2011||→ Racing Montevideo (loan)||31||(1)|
|2013–2014||→ Avellino (loan)||2||(0)|
|2016–||Atlético de Rafaela||0||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 12 January 2016.
Born in Montevideo, Abero began his career as a youth player for Nacional. He made his first-team debut on 13 June 2009 in a 0–3 league loss to Central Español. This was his only appearance in 2008–09 season. Nacional eventually won the league.
In July he made three league appearances for Nacional and in January he was loaned to Racing Montevideo. He made his debut for Racing on 20 February in a 0–3 league loss to Cerrito. He ended the 2009–10 with six league appearances for Racing. In the next season Abero made 25 appearances and scored one goal (on 7 May 20111 in a 6–0 win over Danubio.
In June 2011 Abero returned to Nacional. On 9 October in a 3–0 win over Rentistas he scored his first goal for Nacional. Abero ended the 2011–12 with 17 appearances and three goals. He also won his second league title with Nacional.
Abero was part of the Uruguay U-17 squad that participated in the 2007 South American Under-17 Football Championship
In 2011, he was called by Juan Verzeri to participate in the Uruguay U-22 squad for the 2011 Pan American Games. In this tournament he scored twice, one goal against Trinidad and Tobago and one against the Mexican selection.