The Sun says the Real Madrid superstar was disappointed when the 71-year-old retired at the end of last season.
Part of the winger’s attraction of a return to Old Trafford was to work again with the man he regarded as a father figure. But United still believe Fergie’s influence as a director at the club will work in their favour.
Ferguson doesn't want to interfere with David Moyes' plans, but will get involved in the Ronaldo deal if asked.
United are willing to offer £65m plus a player — or straight cash if need be.