Manchester United are determined to buy big this summer - with Gareth Bale and Cristiano Ronaldo on the radar.The Sun says Ronaldo yesterday opened the door to a return to Old Trafford by insisting his future at Real Madrid is far from certain.

But if he signs a new deal at Real, Moyes is set to splash a record £85million to land Tottenham's double Footballer of the Year Bale.

United's American owners are determined the club will continue to be a major European force despite Fergie's retirement.

Ronaldo, 28, remains United's No 1 target and yesterday tweeted: "All the news about my renewal with Real Madrid are false."