The Mirror says Rooney left a Manchester hospital yesterday clutching the scan results he hopes will show he is fit to play for club and country.
Rooney was left behind as United went to Valencia on Champions League duty last night.
And the troubled England star was puzzled and stunned when Ferguson claimed he would be out for three weeks to let his ankle recover - with the hint that he was also being given time to sort out his personal life.
Rooney, who played golf on Tuesday as his mates flew off to Spain, will be back in training today as he bids to prove he is right physically and mentally.
Rooney reckons the scans will help persuade Ferguson he should be ready for the Sunderland trip on Saturday as his ankle problem only requires short spells of rest rather than any form of surgery.