Swansea have announced the signing of the Argentina defender Federico Fernández from Napoli on a four-year deal for an undisclosed fee.

The 25-year-old, who has 26 caps for Argentina including four appearances at the World Cup in Brazil, is expected to be in Swansea’s squad for their Premier League game against Burnley on Saturday.

Fernández’s arrival will bolster Monk’s center-back options, which currently include captain Ashley Williams, Jordi Amat and Kyle Bartley.

Fernández joined Napoli in 2011 from Estudiantes for £2.5 million, helping them win the Coppa Italia last season during a campaign when they also finished third in Serie A.