Manchester United owners the Glazer family have confirmed Sir Alex Ferguson has the green light to strengthen his squad this summer.

The Red Devils have a void to fill in their side with superstar Cristiano Ronaldo set to join Real Madrid in a world record £80million deal.

United have been linked with a host of players this summer, including the likes of Antonio Valencia, Karim Benzema and Franck Ribery.

The club are sure to bring in at least one forward in the close season with Carlos Tevez's future unclear following the conclusion of his loan spell at Old Trafford.

In the meantime fans' fears that the club will not reinvest the proceeds from Ronaldo's proposed sale back into Ferguson's playing squad have been eased by the Glazers.

"The decision reflects Cristiano's desire to move on and the manager has accepted that," confirmed a Glazer spokesman.

"The Glazer family as owners, have always supported the manager since their takeover and that is again the situation."