Paul Pogba - 5 things you need to know
The 23-year-old rejoined the Red Devils for a world-record £89m this summer.
Pogba has shown glimpses of his talent and played the full 90 minutes in his second Old Trafford debut against Southampton last month.
Recent reports suggested Pogba had 'betrayed' some of his team-mates, who were informed he would be staying with Juve.
But Italian football manager Mark Iuliano, who used to coach Juve, has refused to blame the Serie A champions for letting Pogba leave.
"Juventus had a tremendous transfer campaign, both incoming and outgoing,” Iuliano told TuttoJuve.
“I’m sorry they’ve lost Pogba, but it was the right decision to let him go because in those conditions it was a great deal.
"The club did very little wrong, the transfer campaign was perfect."
Pogba is in line to make his first appearance for United in the Manchester derby on Saturday (12:30pm).