Rubén Peña

Eibar On 16 June 2016, having been an important figure in Lega's first-ever promotion to the top flight, Peña signed a three-year deal with SD Eibar in the same league. He finished his first season with 28 appearances and one goal, helping to a tenth-place finish.

Peña was converted into a right-back by manager José Luis Mendilibar during 2017–18. He became a regular starter in that position the following campaign, after the departure of Ander Capa.

Villarreal On 4 July 2019, Peña joined Villarreal CF on a five-year contract. He made his competitive debut on 17 August, starting and scoring an own goal in a 4–4 home draw against Granada CF. His first goal in the correct net came on 2 February 2020 in a 3–1 victory over CA Osasuna also at the Estadio de la Cerámica.

Peña struggled for game time after the signing of Juan Foyth in 2020, and was an unused substitute as the team won the 2021 UEFA Europa League final against Manchester United. He was put up for sale, and was due to be loaned to Deportivo Alavés at the start of 2022, but it was called off when he injured his collarbone in a cup game at Atlético Sanluqueño CF.

Osasuna On 17 June 2022, with Foyth, Mario Gaspar and Serge Aurier ahead of him at right-back, Peña reached an agreement to terminate his Villarreal contract three years early. On the same day, he signed for Osasuna until 2025.

Leganés return On 12 June 2025, Peña returned to Leganés after nine years, signing a two-year deal.

Career statistics

Honours Villarreal UEFA Europa League: 2020–21