Mark Schwarzer was not in net for Fulham last week against Bolton. Fulham play Manchester United this Sunday at Craven Cottage. According to the Daily Mail, Mark Schwarzer's status for Sunday is questionable.
The Daily Mail story goes on to mention that Schwarzer did not train today with Fulham. The article discusses that Schwarzer is dealing with a back injury. He will be having a fitness test to determine if he can play Sunday against Manchester United according to the Daily Mail.
I will be following the status of Schwarzer for Sunday and will have an update when more information is available. If Schwarzer cannot play, David Stockdale would probably be starting in his place in net against Manchester United.