Manchester United manager Sir Alex Ferguson has refused to rule Shinji Kagawa out of his side's derby with Manchester City on Sunday.

The Japan international has returned to training quicker than expected, after he was initially thought to have been out of action for a month with a knee problem.

While the midfielder does possess a slight chance of making the clash at the Etihad Stadium, Ferguson believes that it is unlikely that Kagawa will play.

"Kagawa is a fantastic player," said Ferguson. "He is back doing some running but I don't know if he will make Sunday.

"At least he is training. Hopefully he will join in the football part on Monday."

United travel to City for the Manchester derby on Sunday.