Wigan forward Hugo Rodallega is a slight doubt with a knock picked up at Manchester City a fortnight ago.
Defender Emmerson Boyce has recovered from a hamstring problem.
Birmingham welcome back Roger Johnson, Obafemi Martins, Craig Gardner and Stephen Carr, all of whom missed the FA Cup defeat to Bolton through injury.
Barry Ferguson and Martin Jiranek are also fit despite picking up knocks last weekend, but Nikola Zigic is one of four players rated doubtful.