|Full name||Yago Fernández Prieto|
|Date of birth||5 January 1988|
|Place of birth||Lisbon, Portugal|
|Height||1.94 m (6 ft 4 1⁄2 in)|
|Playing position||Centre back|
|2010||→ Gil Vicente (loan)||0||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 1 August 2016.
Born in Lisbon, Yago played for four clubs during his youth career, starting with hometown's S.L. Benfica at the age of nine then successively representing Sporting Clube de Portugal, Real Madrid and Valencia CF. As a senior, his first spell was with the latter's reserve team in Tercera División, in a promotion-ending campaign.
Subsequently, Yago continued in Spain, playing two years for RCD Espanyol B, helping the side promote to Segunda División B and being relegated in his second season. In January 2010, he returned to his country for an unassuming loan spell with Gil Vicente F.C. in the Segunda Liga (no appearances whatsoever).
In July 2010, after not having his contract renewed by Espanyol, Yago was taken on trial by Swedish club Malmö FF, which had just lost Jasmin Sudić with a ruptured cruciate ligament. He played against Fulham in a 0–0 friendly draw, and his performance earned him a contract for the rest of the year, with the deal being confirmed by manager Roland Nilsson.
In August 2012, following a five-month spell with Girona FC in Segunda División, during which he scored in a 5–3 home win against Xerez CD, Yago agreed to a three-year contract with AEK Athens FC.
Yago moved to Clube Oriental de Lisboa in early August 2014, after a short stint in Kazakhstan with FC Shakhter Karagandy. He played his first game as a professional in his country on 5 October, featuring the full 90 minutes in a 0–0 home draw against G.D. Chaves.
- As of 20 February 2015
|Valencia B||2007–08||Tercera División||3||0||—||—||—||—||3||0|
|Espanyol B||2008–09||Tercera División||19||0||—||—||—||—||19||0|
|2009–10||Segunda División B||17||0||—||—||—||—||17||0|
|Gil Vicente (loan)||2009–10||Segunda Liga||0||0||0||0||0||0||—||—||0||0|
|AEK Athens||2012–13||Superleague Greece||13||1||1||0||—||—||—||14||1|
|Shakhter Karagandy||2014||Kazakhstan Premier League||9||1||0||0||—||—||1[c]||0||10||1|
- Malmö FF
- Yago Fernández klar för Malmö FF (Yago Fernández ready for Malmo FF); Svenska Fans, 30 July 2010 (in Swedish)
- Yago och Malm klara! (Yago and Malm done!); Malmö FF, 8 December 2010 (in Swedish)
- Inget MFF-kontrakt för Nkili (No MFF contract for Nkili); Sydsvenskan, 29 November 2011 (in Swedish)
- El Girona ficha al defensa portugués Yago Fernández (Girona signs Portuguese defender Yago Fernández); Diario AS, 24 January 2012 (in Spanish)
- 5–3: El Girona respira en un partido con alternativas y polémica (5–3: Girona breathes in game of alternatives and controversy); Mundo Deportivo, 10 March 2012 (in Spanish)
- "Guldhjälte i Malmö ska rädda Häcken" [Golden hero in Malmö will save Hacken] (in Swedish). Aftonbladet. 19 August 2013. Retrieved 17 June 2014.
- "Officiellt: BK Häcken släpper sex spelare" [Official: BK Häcken releases six players] (in Swedish). Fotbolltransfers. 5 November 2013. Retrieved 17 June 2014.
- "Defesa Yago Férnandez reforça Oriental por uma temporada" [Defender Yago Fernández strengthens Oriental for one season] (in Portuguese). Visão. 2 August 2014. Retrieved 4 August 2014.
- "Oriental-Chaves, 0–0: Jogo muito disputado a meio campo" [Oriental-Chaves, 0–0: Hard-fought game in midfield] (in Portuguese). Record. 5 October 2014. Retrieved 6 July 2016.
- "Yago". ForaDeJogo. Retrieved 18 January 2015.
- "Yago". Soccerway. Retrieved 18 January 2015.