Manchester United boss Sir Alex Ferguson faces a dilemma over midfielder Anderson.

The Manchester Evening News says United could face an enquiry from Greek club Panathinaikos about Anderson, who hasn't been seen in action since the Bursaspor home match in the middle of last month.

The 22-year-old was then a victim of a flu bug, but there has been no medical bulletin since and Panathinaikos are looking for a loan until the end of the season.