Aarón Martín

Espanyol

Born in Montmeló, Barcelona, Catalonia, Martín joined RCD Espanyol's youth setup in 2005. On 29 March 2015, while still a junior, he made his senior debut with the reserves by starting in a 1–0 Segunda División B away loss against Gimnàstic de Tarragona. Martín scored his first senior goal on 16 January 2016, the first in a 2–0 home win over CF Reus Deportiu. On 13 June, already being a starter, he renewed his contract until 2020. On 2 October 2016, Martín made his first-team – and La Liga – debut, coming on as a second half substitute for Diego Reyes in a 0–0 home draw against Villarreal CF. The following 28 January, he agreed to an extension until 2022, being definitely promoted to the first team three days later.

Mainz 05

On 6 August 2018, Martín joined German club 1. FSV Mainz 05 on a season-long loan. His first appearance in the Bundesliga took place on 26 August, in a 1–0 home defeat of VfB Stuttgart where he featured the full 90 minutes. Martín signed a permanent contract on 5 November 2018, effective as of the following 1 July. On 31 December 2020, he was loaned to RC Celta de Vigo for the remainder of the campaign with an option to buy. Martín scored his first goal as a professional on 18 February 2022, helping the hosts to beat Bayer 04 Leverkusen 32. He netted a career-best five in 2022–23, also providing three assists.

Genoa

On 3 July 2023, Martín signed with Genoa CFC in the Serie A. He scored his first goal for them on 22…

On 28 December 2016, Martín made his debut for the Catalonia national team, starting in a 3–3 draw against Tunisia (4–2 loss on penalties).

As of match played 24 May 2026

Spain U21

UEFA European Under-21 Championship: 2019