With efforts to land another Everton star, Leighton Baines, also hitting the buffers Moyes has set his sights on PSV Eindhoven youngster Jetro Willems as a potential back-up for Patrice Evra.
David Moyes scouted the Dutch international extensively when Toffees boss and is now keen to tempt the 19 year old Dutch international into making the move to Old Trafford.
The 19 year old is already into his fourth Eredivisie campaign and would almost certainly have his head turned by a possible move to the Premier League, even more so having seen his team-mates Dries Mertens, Kevin Strootman and Jeremain Lens leave for Napoli, Roma and Dynamo Kiev this summer.
The attack minded left-back has a bright future and Man United are thought to be ready to offer around £8m for his services.