The Blues skipper was substituted 32 minutes into the 1-0 defeat against Coventry City last weekend with a neck injury.
Blues boss Alex McLeish has confirmed that he will wait until the last possible moment before deciding whether or not to include Carsley in his squad for the re-arranged game at Selhurst Park on Tuesday evening which if Blues could manage to win would take them to within one point of Championship table toppers Wolves.