City assistant Steve Parkin says the trio of Nahki Wells, Rory McArdle and Zavon Hines will all need to be checked over before Saturday's F.A Cup with Budweiser First Round tie at Northampton Town.
McArdle and Wells reported tight hamstrings after Tuesday's Capital One Cup win at Wigan Athletic, while Hines picked up a spot of cramp during the same tie at the DW Stadium.
All three injuries are believed to be only minor but Parkin hasn't ruled out the possibility of at least one of them missing out on Saturday as a precaution.
Ritchie Jones, who missed the Wigan tie altogether with a stomach virus, appears to be over the illness now, however, and should come into the frame for the Northampton F.A Cup match.
Parkin said: "All being well, Ritchie will be training today (Thursday).
"In regards Nahki, Rory and Zavon, we'll have a late check on those three tomorrow (Friday) ahead of the weekend. We'll just be leaving them until tomorrow just to see how they are.
"We'll have a head count tomorrow morning ahead of training and then train in preparation for Saturday.
"I get the feeling at least most of those three will be ok, but it's important that we don't fatigue them too much if they are carrying knocks, especially with a very important league game coming up next Tuesday (vs Chesterfield)."
Ricky Ravenhill will definitely miss the trip to Sixfields Stadium this Saturday after the club eventually decided against appealing his three-match ban for last weekend's red card at Burton Albion.
Parkin added: "We took advice from various parties and eventually came to the conclusion that we would have to just see Ricky's suspension through."
"We still don't think Ricky did anything to deserve a red card but we'll just have to put up with the harsh punishment of a three-game ban.
"It's a shame to lose a key player like Ricky for three games.
"The only saving grace, however, is that his three matches will be ticked off in around a week and we can get him back available to us soon enough."