Manchester United must go to £60 million to convince Willian to leave Chelsea.
The Sun says Jose Mourinho wants old-boy Willian to join his Manchester United revolution.
Willian, a rare Chelsea success story last season, was Mourinho's star man before the Portuguese got the sack in December. He was also named the fans' Player of the Year and players' Player of the Year.
Mourinho signed Willian from Russian side Anzhi Makhachkala for £30million three years ago and knows he will have to double that fee if he is to attract the player to Old Trafford.
But it is understood Willian, 27, would be keen to link up with his former boss again.