George Ray comes back into the reckoning for the Railwaymen when they host the Robins.
The Alex did just fine without the centre-back when he was away on Wales Under-21s duty last weekend as they ended a run of six games without a win to defeat Preston 2-0 at Deepdale.
With them keeping a clean sheet for the first time in League One this season, it remains to be seen whether Ray will be included while fellow central defender Harry Davis (knee) is another week away from a return.
Mathias Pogba (knee) is on the comeback trail but a return before Christmas seems more likely and a hip injury will keep teenager Ryan Colclough out.
Bristol City will assess captain Sam Baldock.
The former West Ham striker has been struggling with a groin injury but trained on Thursday and the Robins hope he will be available as they search for their first Sky Bet League One victory of the season.
But the game will come too soon for veteran defender Louis Carey, who is recovering from a virus and is expected to return to training next week.
Centre-back James Wilson has returned to Ashton Gate following the end of his loan spell at Cheltenham while former Rotherham striker Ryan Taylor also comes into contention after coming through two development games.