The Red Devils have kicked off their much anticipated summer transfer activity in the past couple of days with moves for the left-back and midfielder which have cost in excess of £60m.
Even with such sums having been spent, Louis van Gaal is willing to further splash the cash, with a budget of £200m thought to be available to him.
An all-round central player is now seen as a top target for the Dutchman, who has been impressed by Vidal’s displays at the World Cup.
The Chilean has been an integral part of his side’s run to the last 16, with his bombarding showings earning much praise.
It is understood that United have already made quiet approaches to Juve to discuss the 27-year-old, who is thought to be valued at around £30m – £40m.
Van Gaal also has his eye on a pair of new centre-backs, with Thomas Vermaelen of Arsenal and German star Mats Hummels rumoured targets.