*Club domestic league appearances and goals, correct as of 22:33, 31 August 2024 (UTC) ‡ National team caps and goals, correct as of 19:19, 17 November 2020 (UTC)
Yeray played his first professional game on 24 August 2015, coming on as a second-half substitute for Jurgi Oteo in a 1–0 home loss against Girona FC.[6] He was a regular starter during that season, but the side were immediately relegated back as dead last.
In the 2016 pre-season, Yeray was promoted to the main squad, and he made his competitive debut on 15 September of that year when he played the full 90 minutes in a 3–0 away defeat to US Sassuolo Calcio in the group stage of the UEFA Europa League.[7] His maiden La Liga appearance took place three days later, replacing Eneko Bóveda in a 2–1 home win over Valencia CF.[8]
Yeray subsequently became a regular starter for the Lions, appearing in 17 out of a possible 20 matches in all competitions. Due to the nature of his progression through the youth departments, he held the unusual distinction of having played in a different league every season from 2008 to 2016 without interruption: five youth year levels ending with the División de Honor Juvenil de Fútbol, fourth level with Basconia, divisions two and three with the reserves and top tier with the senior team.[3] However, the run was halted abruptly on 23 December 2016, when the club announced he had been diagnosed with testicular cancer and would undergo surgery within the next week;[9] he returned to action on 4 February 2017 after only 46 days, playing the full 90 minutes in a 3–0 loss at FC Barcelona,[10][11] and five days later, he extended his contract until 2022.[12]
On 12 June 2017, tests found further cancerous abnormalities, resulting in Yeray having to undergo chemotherapy treatment.[13] On his return to the club's training centre the following month, he was greeted by the entire playing squad, who had all shaved their heads in a gesture of solidarity.[14]
On 20 December 2017, Yeray captained the Athletic under-23s in a win over Swansea City in the Premier League International Cup (a reserves tournament).[15] 259 days after his last appearance, he made his return with the senior team on 4 February 2018 (exactly one year after his first comeback match, both fixtures by strange coincidence taking place on World Cancer Day),[16] playing the entirety of a 0–2 domestic league defeat away to Girona.[17]
Yeray agreed to a new seven-year deal on 18 July 2019, keeping him at the San Mamés Stadium until 2026 and with a release clause set at €70m.[18][19] He scored his first competitive goal for the first team on 25 January 2021, heading home a cross from Iker Muniain for his team's second in an eventual 5–1 home victory against Getafe CF.[20]
On 31 May 2023, Yeray underwent surgery to address the pubalgia problems that were preventing him from playing regularly.[21] On 6 October, he suffered a muscle injury to his thigh that also required operation and kept him out for four months.[22][23] In March 2024, another muscle ailment prevented him from participating in the final of the Copa del Rey against RCD Mallorca.[24][25]
Even though he was not part of the squad of 23 for the 2018 FIFA World Cup finals, Yeray was picked by full side manager Julen Lopetegui for a friendly with Switzerland to be held on 3 June.[28] He remained an unused substitute in the 1–1 draw.[29]
^García-Muñoz, Sergio (24 August 2015). "El que la sigue, la consigue" [He who wants it, gets it]. Marca (in Spanish). Retrieved 24 August 2015.
^Pérez, Eneko (24 November 2016). "Yeray, el superviviente de Sassuolo" [Yeray, the survivor of Sassuolo]. El Correo (in Spanish). Retrieved 24 December 2016.
^Egea, Pablo (18 September 2016). "El Valencia, ni con ventaja" [Valencia, not even taking the lead]. Marca (in Spanish). Retrieved 18 September 2016.
^Velasco, Juanma (23 December 2016). "Yeray sufre un tumor testicular" [Yeray suffers from testicular tumour]. Marca (in Spanish). Retrieved 23 December 2016.
^Díaz, Juan Carlos (25 January 2021). "El Athletic es ahora un superequipo" [Athletic are now a superteam]. Marca (in Spanish). Retrieved 25 January 2021.