|Full name||Gerard Valentín Sancho|
|Date of birth||28 July 1993|
|Place of birth||Avinyonet, Spain|
|Height||1.76 m (5 ft 9 1⁄2 in)|
|Playing position||Right back|
(on loan from Deportivo La Coruña)
|2017–||Deportivo La Coruña||4||(0)|
|2019–||→ Lugo (loan)||13||(1)|
* Senior club appearances and goals counted for the domestic league only and correct as of 9 June 2019|
‡ National team caps and goals correct as of 28 December 2016
Born in Avinyonet de Puigventós, Girona, Catalonia, Valentín graduated with Girona FC's youth setup, after a stint at UE Figueres. He made his debuts as a senior with Sevilla FC C in the 2012–13 campaign, in Tercera División.
On 13 July 2013, Valentín joined Segunda División B side UE Olot. On 6 July of the following year, after appearing regularly, he signed a two-year deal fellow league team Gimnàstic de Tarragona.
Valentín appeared in 24 matches for Nàstic during the campaign, winning promotion to Segunda División. He made his professional debut on 23 August, starting in a 2–2 home draw against Albacete Balompié.
- ""Fitxar pel Nàstic va ser un encert"" ["Signing for Nàstic was a success"] (in Catalan). L'Esportiu de Catalunya. 4 September 2015. Retrieved 18 January 2016.
- "L´Olot anuncia les incorporacions de Valentín (Sevilla C) i Ferrón (Jonquera)" [Olot announces the additions of Valentín (Sevilla C) and Ferrón (Jonquera)] (in Catalan). Diari de Girona. 13 July 2013. Retrieved 21 June 2015.
- "El Nàstic i la UE Olot arriben a un acord pel traspàs de Gerard Valentín" [Nàstic and UE Olot reach agreement for the transfer of Gerard Valentín] (in Catalan). Gimnàstic Tarragona. 6 July 2014. Retrieved 22 June 2015.
- "El Gimnástic remonta in extremis al Albacete" [Gimnástic comes back in extremis against Albacete] (in Spanish). Marca. 23 August 2015. Retrieved 23 August 2015.
- "Gerard Valentín será grana hasta el 2019" [Gerard Valentín will be grana until 2019] (in Spanish). Gimnàstic Tarragona. 18 January 2016. Retrieved 18 January 2016.
- "Gerard Valentin, nuevo jugador del Real Club Deportivo" [Gerard Valentin, new player of Real Club Deportivo] (in Spanish). Deportivo La Coruña. 12 July 2017. Retrieved 13 July 2017.
- "Gerard Valentín will join CD Lugo on loan". Deportivo La Coruña. 15 January 2019. Retrieved 11 February 2019.
- "Gerard Valentín jugará cedido en el CD Lugo" [Gerard Valentín will play on loan at CD Lugo] (in Spanish). Deportivo La Coruña. 12 August 2019. Retrieved 15 August 2019.
- "Catalonia impress before going down to Tunisia after penalty shootout". Sport. 28 December 2016. Retrieved 15 August 2017.
- "El germà del defensa Gerard Valentín arriba al Nàstic per tres temporades" [The brother of defender Gerard Valentín arrives at Nàstic for three seasons] (in Catalan). Camp d'Esports. 4 July 2015. Retrieved 24 April 2016.