By . Simon Jones . Swansea are increasingly confident of signing Napoli defender Federico Fernandez in time for the start of the premier league season. Napoli have accepted their £8m offer for the Argentina defender and the player is happy with the terms all that remains to be sorted is a work permit. Fernandez was part of Argentina's World Cup squad but has not played the quota of internationals required due to injury. Experience: Federico Fernandez would bring quality and experience to the Swansea defence . Target: Napoli defender Fernandez played four times in Brazil for Argentina as they reached the final . Meanwhile, Napoli are threatening QPR's move for midfielder Jonathan de Guzman. The Dutch international was on loan at swansea from Villarreal last season and QPR are willing to offer £7m. However, Napoli have now shown an interest and could prove more attractive than the Loftus Road club.
Swans have agreed a £8m fee with Napoli for the Argentine defender . Fernandez is happy with personal terms and is waiting on work permit . Former Swan Jonathan de Guzman wanted by Napoli and QPR .