Manchester United winger Adnan Januzaj will seek assurances from Jose Mourinho over first-team football this week after Borussia Dortmund accepted a bid from the Red Devils for Henrikh Mkhitaryan.

The 21-year-old will request to leave the club permanently rather than go out on loan again if he is not in Mourinho's plans for the season, according to the Sun.

Januzaj left on loan to Borussia Dortmund last summer but failed to impress and returned to Old Trafford in January.

New United boss Mourinho is understood to be an admirer of the Belgium international, but he faces competition from 27-year-old Armenia captain Mkhitaryan.

Januzaj and his representatives will hold talks with Mourinho over his future when he returns for pre-season training to Carrington this week.

A United source told the Sun: "It seems like Adnan is way down the first-team playing order now, but he is really well liked by Jose who rates him highly."

Mourinho spoke highly of Januzaj during his second managerial spell at Chelsea in January 2014.

Adnan Januzaj
Adnan Januzaj only made two league appearances for Manchester United last seasonGetty Images

"He is a fantastic player. He is not 18, he is 25. He is so mature and comfortable. A very good and important player," the Portuguese said.

"I just think he is a very good player with the great conditions to have a great long-term career. I don't know the boy individually, but it looks like he has the lot."

Mourinho officially starts work at Old Trafford on 4 July and is still waiting for the signing of Mkhitaryan from Dortmund.

Eric Bailly and Zlatan Ibrahimovic have arrived from Villarreal and Paris Saint-Germain respectively, as Mourinho moulds the squad he inherited from Louis van Gaal to his liking.

United are also reportedly considering launching a world-record bid for Juventus and France midfielder Paul Pogba.