Matías Lautaro Ruiz Díaz (born 9 September 1996) is an Argentine professional footballer who plays as a right-back for Independiente Rivadavia.
[2] Ruiz Díaz started his senior career with Estudiantes, following youth spells with Fívica de Gonnet and Deportivo de City Bell.
[3][4] After first appearing as an unused substitute for a 2017 Copa Sudamericana match with Nacional Potosí on 13 July 2017, Ruíz Díaz made his professional debut in the following December during a league win away to Talleres.
[2][7][8] On 4 July 2019, Ruiz Díaz was loaned out to Guillermo Brown for the 2019–20 season.
[10] Due to lack of playing time, the loan spell was terminated on 11 June 2022, and Ruíz Díaz was instead sent out on loan at Primera Nacional side Quilmes for the rest of the year.