Age: 27 Cost: £26m (reported) Position: Attacking midfielder
Career so far: Started in his homeland of Armenia with Pyunik, before spells with Metalurh and Shakhtar Donetsk. Joined Dortmund three years ago, scoring 23 goals in 88 Bundesliga appearances. Had a hand in 49 goals (23 goals, 26 assists) in 52 games for Dortmund last season.
What type of player is he? Plays most of his football as an attacking midfielder, but can also play in a deeper midfield role, on the wing or just off a striker. An expert passer and finisher, as his stats for last season show.
Will he cut it in the Premier League? Has all the characteristics needed to be one of the stars of the Premier League. However, a word of caution – the last Dortmund playmaker that United signed was Shinji Kagawa, who only lasted two years at Old Trafford.
What has been said about him? “He is one of the most talented players in the world. He possesses an incredible combination of speed and technique. There’s very, very few you can say that about,” Jurgen Klopp in 2015.