Town will assess the fitness of Jon Walters and Kevin Lisbie before confirming the squad for Wednesday's game against Nottingham Forest.
Jon pulled out of the draw with Blackpool at the weekend after going down with a stomach bug while Kevin wasn't risked in the match after sustaining a back problem when warming up.
"Kevin tweaked his back when he was warming up down the side of the pitch during the game," Town physio Matt Byard told the Club website.
"He had to have treatment and we couldn't put him on. He missed training today and we will have another look at him on Tuesday but he is obviously a concern for us at this stage.
"Jon is over the bug and did some light work today and he will train fully on Tuesday. It's a case then of seeing what's in the tank."
Tickets for Wednesday night's game are still available with kick-off at 7.45pm. Full details on the ticket page of the Club website.