Manchester United have announced the signing of midfielder Henrikh Mkhitaryan for an undisclosed fee believed to be £30m.

Mkhitaryan has signed a four-year contract after joining from Borussia Dortmund, with the option for a further year.

“Manchester United is delighted to announce that Henrikh Mkhitaryan has completed his transfer from Borussia Dortmund. Henrikh joins on a four-year contract with the option to extend for a further year,” a statement on the club’s website confirmed on Wednesday.

Mkhitaryan, 27, made 140 appearances and scored 41 goals for Borussia Dortmund after joining them from Shakhtar Donetsk in 2013. The midfielder is Armenia’s all-time top scorer, with 19 goals in 59 appearances since his international debut in January 2007, and he has been named the Armenian Footballer of the Year award on five occasions.

Henrikh Mkhitaryan said: “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 José 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.”

Mourinho added: “Henrikh is a very talented footballer who has been in such prolific form for both his club and his country. He is a real team player with great skill, vision and also has a good eye for goal. I am delighted he has chosen to sign for United. I believe he will make an impact on the team very quickly as his style of play is suited to the Premier League. We are all looking forward to working with him.”

Mkhitaryan becomes United's third signing of the summer after deals for Ivory Coast defender Eric Bailly and former Sweden captain Zlatan Ibrahimovic.

(Guardian service)