Gastón Joaquín Valles Velázquez (born 10 May 2001) is a Uruguayan professional footballer who plays as a forward for Spanish club FC Cartagena, on loan from RCD Espanyol.
Born in Montevideo, Valles played for Defensor Sporting as a youth before moving to Spain in October 2021, after signing for Primera FFCV side FC Atlético Benidorm CD.
[2] On 29 January 2024, Valles signed a two-and-a-half-year contract with Segunda División side RCD Espanyol, being initially assigned to the reserves also in the fourth division.
[3] He made his professional debut on 24 February, coming on as a late substitute for Álvaro Aguado and providing an assist to José Carlos Lazo's winner in a 3–2 away success over SD Eibar.
[4][5] Gastón contributed with 14 appearances with the main squad of the Pericos during the 2023–24 campaign, as they achieved promotion to La Liga.