Matías Aguirregaray

Aguirregaray made his professional debut in 2007 with Peñarol and spent four full seasons with the club. In October 2010 he joined Tercera División club Terrassa FC, in order to help him gain a Spanish passport to ease a potential move to a higher-rank team within Europe. He never played a single game with the Catalans. On 24 August 2011, Serie A club Palermo confirmed to have signed Aguirregaray on loan from Montevideo Wanderers F.C., with an option to fully acquire the player's transfer right by the end of the season. He made his debut as a second-half substitute for Nicolás Bertolo in a Serie A home game against Cagliari, ended in a 3–2 win for his side. In July 2013 he signed a contract with Argentine club Estudiantes de La Plata.

Aguirregaray took part at the 2009 South American U-20 Championship and the 2009 FIFA U-20 World Cup as part of the Uruguayan under-20 team. He was part of Uruguay's 2012 Olympic squad. In September 2012, he was called up to the Uruguayan senior side for two World Cup qualifying matches against Colombia and Ecuador, but failed to make debut. He finally made his debut to the senior squad in February 2013 in a 3–1 friendly loss against Spain, coming on as a substitute.

Matias is the son of former Peñarol player Óscar Aguirregaray.