|Full name||Sabin Merino Zuloaga|
|Date of birth||4 January 1992|
|Place of birth||Urduliz, Spain|
|Height||1.87 m (6 ft 2 in)|
|2018–2019||→ Leganés (loan)||12||(0)|
* Senior club appearances and goals counted for the domestic league only and correct as of 21 April 2019|
‡ National team caps and goals correct as of 31 December 2016
Born in Urduliz, Biscay, Basque Country, Sabin graduated from Danok Bat CF's youth setup after spells at Athletic Bilbao's Lezama and American team Javanon FC. In the summer of 2011 he returned to the Lions, and made his debut as a senior with the farm team in Tercera División.
On 21 June 2013, Sabin was promoted to the reserves in Segunda División B. On 29 June 2015, after scoring a career-best 18 goals during the season as the B-side returned to Segunda División after a 19-year absence, he was promoted to the main squad in La Liga.
Sabin made his official debut with the first team on 6 August 2015, coming on as a second-half substitute for Javier Eraso in a 0–0 away draw against Inter Baku PIK for the campaign's UEFA Europa League. After the departure of Guillermo, he was finally granted a place in the main squad, being assigned #25.
Sabin started in the 4–0 home routing of FC Barcelona for the Supercopa de España on 14 August 2015 as a left winger, providing the assist for Aritz Aduriz's second goal. He scored his first professional goal on 20 August, netting the first in a 2–3 Europa League playoff round loss at MŠK Žilina.
Sabin scored his first goal in the Spanish top flight on 23 September 2015, in a 1–2 home defeat against Real Madrid. On 31 August 2018, he was loaned to fellow league club CD Leganés for one year.
- "El cachorro Sabin Merino es seguido por varios clubes ingleses" [Youngster Sabin Merino is tracked by several English clubs] (in Spanish). El Desmarque. 4 December 2013. Retrieved 9 August 2015.
- "La apuesta del Athletic es Sabin Merino" [Athletic's bet is Sabin Merino]. Deia (in Spanish). 16 June 2015. Retrieved 9 August 2015.
- "Bilbao Athletic pre-season". Athletic Bilbao. 21 June 2013. Retrieved 9 August 2015.
- "Sabin Merino: El capitán de récord que pudo ser también héroe" [Sabin Merino: the record captain who could also have been the hero]. Mundo Deportivo (in Spanish). 29 June 2015. Retrieved 9 August 2015.
- "Dismissals in Bilbao Athletic". Athletic Bilbao. 29 June 2015. Retrieved 9 August 2015.
- "Eraso arranca con el pie derecho en Bilbao" [Eraso starts off on the right foot in Bilbao]. Diario AS (in Spanish). 30 July 2015. Retrieved 18 August 2015.
- "Williams hereda el '15' de Iraola y Bóveda el '2' de Toquero" [Williams inherits the '15' from Iraola and Bóveda the '2' from Toquero]. Marca (in Spanish). 13 August 2015. Retrieved 14 August 2015.
- "Aduriz echa al Barça a los leones" [Aduriz throws Barça to the lions]. Marca (in Spanish). 14 August 2015. Retrieved 15 August 2015.
- "El Athletic se deja sorprender por el Zilina" [Athletic let themselves be surprised by Zilina]. Marca (in Spanish). 20 August 2015. Retrieved 23 August 2015.
- "Ath Bilbao 1–2 Real Madrid". BBC Sport. 23 September 2015. Retrieved 26 December 2015.
- "El extremo Sabin Merino, cedido al C.D. Leganés para la presente temporada" [Winger Sabin Merino, loaned to C.D. Leganés for the current season] (in Spanish). CD Leganés. 31 August 2018. Retrieved 1 September 2018.
- "Catalunya 0–1 Euskal Selekzioa" [Catalonia 0–1 Basque XI] (in Spanish). Basque Football Federation. 26 December 2015. Retrieved 2 January 2017.