Sir Alex Ferguson has become involved in trying to help Manchester United re-sign Cristiano Ronaldo next summer, according to reports.

The 29-year-old Portugal captain has been heavily linked with a return to Old Trafford in recent weeks amid claims that he is unsettled at Real Madrid.

The latest reports have claimed that the Red Devils are weighing up a staggering £160m package to bring the Ballon d’Or winner back to the club he left in 2009.

And football agent Francois Gallardo claims that former United manager Ferguson has now weighed in to help the deal go through.

“On Wednesday Cristiano received a call from Ferguson [about returning to United],” Gallardo told Le Sport 10.

“He was he was happy at Real Madrid but the whole transfer depends on Jorge Mendes.”

Speaking last week, Real Madrid boss Carlo Ancelotti moved to play down the chances of Ronaldo leaving the Spanish club.

Ancelotti said: “I believe [the] reports are nonsense. Cristiano is happy here, very motivated to be here, and all Madridismo is delighted with him.”