Federico Fernández (Latin American Spanish: [feðeˈɾiko feɾˈnandes]; born 21 February 1989) is an Argentine former professional footballer who played as a centre-back.

[4] Fernández made his league debut for Estudiantes de La Plata on 14 September 2008 during the 2008 Apertura tournament in a 1–0 defeat to Vélez Sársfield.

[citation needed] Fernández scored his first goal with the squad in an away match against Lanús on 2 May 2009, following an assist by teammate Juan Sebastián Verón.

Later that year, Estudiantes won the 2009 Copa Libertadores, although Fernández's only contributions were two substitute appearances against Defensor Sporting Club in the quarter-finals.

[6] On 2 November 2011, Fernández scored his first two goals for Napoli, against Bayern Munich in a Champions League group stage away tie.

[10] On 20 August 2014, it was announced that Fernández had signed for Premier League side Swansea City on a four-year contract for €10 million.

He established himself as a regular in defence during Argentina's successful FIFA World Cup qualification campaign under head coach Alejandro Sabella.

[27] He made his World Cup debut in Argentina's 2–1 win against Bosnia and Herzegovina at the Maracanã Stadium, playing the full match in defence.