Starsport revealed yesterday that the French champions are plotting a £40m bid for the teenage sensation this summer.

PSG bosses saw a £15m bid rejected last month, but manager Laurent Blanc is refusing to give up on the new United star.

Blanc is convinced he can lure Januzaj to the billionaire outfit and is willing to hand him a long term deal worth £100,000-a-week.

But United are determined to keep Januzaj at Old Trafford and insists he is not for sale at any price.

Under-fire boss David Moyes wants to rebuild his side around Januzaj and a club source said: “Adnan has a massive role to play in the future of the team and he can go on to become a huge success at United.

“It doesn’t matter what offers might come in for him, he will not be sold because he is not for sale.”

Januzaj signed a new deal at United earlier this season worth £30,000-a-week and could be handed a bigger one next season if he continues to impress.

He has been one of the few positives for United this season and Moyes has tipped him to become one of the game’s greats.