Sunderland striker Fraizer Campbell has suffered a setback in his bid to return from knee surgery.
Campbell, who has not made a first-team appearance for the Black Cats since August, had been expected to feature in the squad for the defeat at Manchester City, but was ruled out after suffering a late setback.
Bruce said: "Fraizer Campbell twisted his knee yesterday in training and he will have a scan.
"We are keeping our fingers crossed that it is not a recurrence of the knee injury that he had in August.''
