Jose Mourinho’s side captured the 27-year-old Armenia international on a four-year contract after a fee, reported to be around £26 million (Dh123m), was agreed with the German outfit last weekend.
Mkhitaryan becomes United’s third signing of the summer after deals for Ivory Coast defender Eric Bailly and former Sweden captain Zlatan Ibrahimovic.
His arrival is likely to signal the exit of one if not more of United’s attacking midfield talent – here’s who we think could leave the Manchester club: