"It was a lot more than a 24-hour bug, Wardy's lost about eight pounds," said Keane. "There were one or two [players] that had a bug, but Wardy's was more serious.
"He'll look to train with the rest of the lads this week and he'll be in contention for the weekend."
Meanwhile, Ben Alnwick looks to have played his last game for the club following the news that he is almost certainly off to Tottenham in January for a fee of around £1m. The England-U21 goalkeeper was the subject of a sex scandal last week, involving not just one, but 2 other Sunderland players. Liam Lawrence and Chris Brown were involved, as well as former Sunderland midfielder, Martin Woods - now at Rotherham.