According to TMW (translated by Daily Star), the Hammers have submitted an offer of around €40m for the player.
It will be interesting to see if Cagliari accept the offer from the Premier League side. The Italian side are thought to be considering the offer.
The Hammers are keen on improving their midfield options and Nandez could prove to be a decent addition.
He will add workrate and defensive cover to West Ham’s midfield. West Ham need his energy in their midfield and his aggressive tackling will help them set the tempo of the game as well.