Henrikh Mkhitaryan says he's joined Manchester United to win trophies.

The Armenia captain completed his transfer from Borussia Dortmund earlier this month and impressed during his unofficial debut in the 2-0 friendly win over Wigan Athletic on Saturday, performing as a number 10 at the DW Stadium and later earning praise from his manager.

"It's a very good opportunity to play for United," he said. "Manchester are one of the biggest clubs.

"I am very happy and I will try to do my best to help us win. We will try to do everything to win titles. It will be difficult but let's hope we can have a good preparation and then we will see."