Al-Nassr are understood to be ready to make Casemiro a huge offer with encouragement from his former Madrid team-mate Cristiano Ronaldo.

The Saudi club could move for Wan-Bissaka this month after seeing a £20m bid for Tottenham right-back Emerson Royal rejected last week.

Man United’s Casemiro (left) and Aaron Wan-Bissaka (right) have both been earmarked for sale

Jadon Sancho is another player that the side are keen to offload in the summer and he has opted to return to Borussia Dortmund for a six-month loan move

Wan-Bissaka faces an uncertain future at Old Trafford after United triggered the 12-month extension in his contract in December having decided not to offer the defender a new long-term deal.

The 26-year-old’s agents are understood to have held further contract talks with United earlier this month but the outcome was not positive.

Although Wan-Bissaka’s old club Crystal Palace and West Ham have also expressed an interest, they would not be able to match Al-Nassr’s offer.

Jadon Sancho is another United player who has been linked with a summer move to the Saudi Pro League, but he turned down Al-Ettifaq at the start of this season before joining Borussia Dortmund on loan this month.

United are paying a third of Sancho’s £290,000-a-week salary while he plays in Germany and are desperate to get him off the wage bill.

Raphael Varane and Anthony Martial – who earn £340,000 and £250,000 respectively – have not been offered contract extensions and are set to leave as free agents in the summer, although Varane could stay longer if he accepts a pay-cut.