Chris Wilder has admitted he is uncertain about his future with Sheffield United as he is again being linked to the Sunderland job.
Jacques Maghoma was Birmingham's goalscoring hero in their vital 2-1 Championship home win over Sheffield United.
Birmingham's attacking options are boosted by the return of Che Adams and Sam Gallagher ahead of the visit of Sheffield United.
Lee Evans scored two fine goals as Sheffield United's faltering bid for the play-offs was boosted by a 2-1 victory over Middlesbrough.
Barnsley gave their survival chances a huge boost with a 3-2 over South Yorkshire rivals Sheffield United at Oakwell.
Barnsley boss Jose Morais could choose from an unchanged squad for the home game against Sheffield United.
Sheffield United could have leading scorer Leon Clarke back for their home game against Nottingham Forest.
New Sheffield Wednesday manager Jos Luhukay enjoyed his first taste of English football after surviving a baptism of fire against Sheffield United.