Diego Mariño Villar

Valladolid and Levante Mariño signed a five-year contract with Real Valladolid on 5 July 2013, with Villarreal retaining an option to buy him back for €300,000. He made his debut in the top flight on 17 August, in a 1–2 home loss against Athletic Bilbao.

On 8 August 2014, Mariño moved to Levante UD of the same league in a season-long loan. On 31 August of the following year, he signed a permanent three-year deal with the club.

Sporting Gijón On 1 July 2016, after Levante's relegation, Mariño joined Sporting de Gijón for four years. Understudy to Iván Cuéllar, he made his debut on 26 November in a 2–1 loss at leaders Real Madrid.

On 18 January 2018, Mariño extended his contract until 2022. Between 4 February and 1 April he was unbeaten during 764 minutes and, at the end of the season, he was named Sporting's player of the year.

In August 2019, another year was added to Mariño's contract. He remained first-choice at El Molinón in the ensuing seasons, even after the re-acquisition of Cuéllar in 2021. He suffered a right hamstring injury the following March and was replaced by the latter for ten games as the side successfully fought relegation, returning on 29 May for the final match of the campaign in a 1–0 home defeat against UD Las Palmas.

Almería On 26 January 2023, Mariño returned to the top tier after agreeing to an 18-month contract with UD Almería. He made his only appearance of the season on 4 March, as a half-time substitute for the injured Fernando and conceding both goals in a 2–0 home loss to Villarreal.

Mariño spent the 2023–24 campaign as third-choice behind Luís Maximiano and Fernando as they suffered relegation, and left the club in July 2024.

Later career On 10 September 2024, Mariño signed a one-year deal with Granada CF. In July 2025, he moved to fellow second-division Albacete Balompié on a two-year contract.

International career Mariño won his first cap for the Spain under-21 team in 2011. Also that year, he was selected by manager Luis Milla for his UEFA European Championship squad; in the tournament in Denmark, he was a backup to Atlético Madrid's David de Gea as the nation won its third title in the category.

The following year, Mariño repeated the role for the under-23 side in a group-stage exit at the Summer Olympic Games in Great Britain.

Career statistics

Honours Spain U21 UEFA European Under-21 Championship: 2011, 2013

Spain U17 FIFA U-17 World Cup runner-up: 2007