The Villains ace shone for Holland over the summer at the World Cup, and was subsequently linked with big moves away from the Midlands.
United and Arsenal bother considered offers for him, with rumours suggesting January swoops could be on with Vlaar’s contract due to end at the end of the season.
Te duo are both known to be in the market for defenders, yet Napoli are now in the battle.
Reports reveal that Napoli have spoken to the Dutchman’s representatives, which has opened the door for a switch to Italy next month.
Naples boss Rafael Benitez is known to have a good knowledge of the Premier League following a long spell with Liverpool and a short stint at Chelsea.
Villa are keen to keep ‘Concrete Ron’, however the player himself is believed to be keeping his options open.