Liam Lawrence has suffered another injury setback – but is set to be fit for Preston.
The midfielder picked up a knee problem last weekend and, despite a scan giving him the all-clear, he suffered another reaction in training this week.
Blues boss Steve Cotterill said: ‘We don’t know whether it was a nerve because he came in for the first part of the week and was okay.
‘Then in training he had a little bit of a setback. He didn’t train for a few days but feels fine. We probably could have pushed him but we need to see where he is before we finalise the team.’