Argentina defender Federico Fernandez stands by to make his first Premier League start for Swansea
Swansea live updates
Swansea City have completed the signing of Argentine defender Federico Fernandez from Napoli.
The centre-back has penned a four-year deal with the Welsh club.
Swansea skipper Ashley Williams admits he is not fussed by the Louis van Gaal factor at Old Trafford on Saturday.
– Swansea captain Ashley Williams
We couldn't really have got a bigger game, but the spotlight is obviously with them as they've got a new manager and it's on their ground.
We won't worry about them. We've been working on a system, how we want to play.
We need to concentrate on that really and go into the game positive.
For us, we're just concentrating on ourselves, whoever the opponent is.
Swansea have confirmed the departures of Spanish pair Chico Flores and Pablo Hernandez for undisclosed fees.
Both players will play in the Qatari Stars League with centre-back Flores linking up with former Swansea manager Michael Laudrup at champions Lekhwiya and midfielder Hernandez joining Al-Arabi.
Both transfers are subject to international clearance but the moves will end two-year spells for the Spaniards at the Liberty Stadium.