Tom Craddock looks set for another spell on the sidelines after suffering more knee trouble.
The Blues striker was ruled out of the 0-0 draw at Hartlepool on Saturday after aggravating the injury in the defeat to Southend and is set to see a specialist this week to try to resolve the problem.
Caretaker boss Andy Awford was left with just Ryan Bird as his only recognised striker for the trip to Victoria Park – with David Connolly also nursing a knee injury.
And Awford admits there is concern over Craddock.
He said: ‘Tom’s knee has not quite settled down as we had hoped.
‘We were positive about it before the game and hopeful he would make it.
‘But it’s not what we thought, so I don’t think Tom will be available for Wednesday.
‘He is quite negative about it at the moment, in all honesty.
‘But I don’t think it’s serious.
‘He is not comfortable on the pitch and can’t do what he wants to do.
‘It’s affecting him, so we’ve got to get it right before we put him in that position again.’
There is more positive news about Connolly, who is expected to be fit for Wednesday’s clash with Wycombe.
Awford said: ‘Dave was nearly fit to play and could have played if I’d asked him.
‘But I didn’t want to risk him and then be left with no strikers.
‘We had to keep an eye on the Wycombe game.
‘So I felt we could get away without using him and give him more of a chance to be fully fit for Wednesday.’