The Italian was signed by Louis van Gaal in 2015 in a £12million deal from Torino but was his spot as the clubs first choice right-back was instantly under threat from Antonio Valencia.
However, Darmian has been frozen out this term and, although he says he doesnt regret joining United, he is interested now in joining Juventus.
Im living a great experience here in England. Id say yes to United again, said Darmian.
Its one of the best clubs in the world. I won several trophies here but I miss Italy. Lets see what happens at the end of the season.
Now the priority is to end the season in the best way possible.
Juventus? I have not decided yet. I am happy Juventus are interested in me. Juve are a great club and I am happy for that.
I will think about a possible move when it will be the right time.
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Darmian could head the clear-out at Old Trafford with Paul Pogba, Daley Blind, Anthony Martial and Luke Shaw all under threat.
Mourinho will be handed around £150million to spend as the Reds look to close the gap on Manchester City.