Sunderland duo Craig Gordon and Asamoah Gyan are doubtful for this weekend's clash with Fulham.
Gordon is struggling with a hamstring injury he picked up in training, while Ghana striker Gyan is suffering from a toe injury.
Scotland keeper Gordon has ony recently returned from a lengthy lay-off and Simon Mignolet is on stand-by to replace him between the sticks.
Black Cats boss Steve Bruce will give the pair until the last minute to prove their fitness ahead of the trip to Craven Cottage.
Meanwhile, Anton Ferdinand has hailed the side's character believing their ability to bounce back from set-backs has improved from last season.
Sunderland bounced back from the defeat at Wolves last month to beat West Ham last weekend and Ferdinand believes the current side are more resilent than last term.
"The Wolves game was disappointing, because we should have won after scoring two goals away from home," Ferdinand told the club's official website.
"But the way we bounced back shows the character we've got this year. Maybe last year we wouldn't have come back from that and lost the next game, but not this year.
"When we've lost games this year we've always come back and won the next one and put in a good team performance. That's the difference between this year and last."