Striker Jon Walters is rated as a doubt ahead of Saturday’s game at Plymouth after spraining an ankle in the closing stages of Tuesday’s draw with Watford.
Boss Roy Keane told the club site: "Jon is a worry for us and we will see how he is leading up to the weekend.
"He doesn't go off the pitch for nothing and it's a concern. We are going into another battle at Plymouth and we're going to need all our leaders and characters, and Jon is one of them.”
Town will also be without Connor Wickham at Plymouth as the 16-year-old frontman has joined up with the England U17 squad.