Henrikh Mkhitaryan has joined Manchester United from Borussia Dortmund.

The Armenia international joins the Red Devils on a four-year contract with the option to extend for a further year.

United boss Jose Mourinho said: "Henrikh is a very talented footballer who has been in such prolific form for both his club and his country."

Mkhitaryan added: "I am very proud to join Manchester United, this move is a dream come true for me. I am excited to play for a club with such an illustrious history and hope to be part of it for a long time. I thank the trust the club and Jose Mourinho have put in me.

"Finally, I believe playing for such a great club honours my father's memory, and the inspiration and drive he gave to me when I was young."