Billy Clarke and Gavin Williams are doubts ahead of Saturday's home game with Leeds United. Clarke has aggravated his ankle injury, while Williams is feeling the effects of playing a number of games so soon after returning from his hernia operation.
Boss Jim Magilton told the club site: "Gavin's a bit sore and stiff at the moment, but that's probably down to the fact that he has played a lot of football in a short space of time after being out for two months.
"We will have a look at him in training but, hopefully, he'll be OK for Saturday.
"With Billy, he has taken another knock on his ankle and he's a bit more of a concern. He's only a young lad and we will have to be careful with him. It's important that if the ankle isn't right he gets a proper rest."