Town will be without Stephen Hunt and Luke Hyam for Saturday’s trip to Bolton Wanderers. Hunt has been ill, while Hyam is not yet over his achilles problem.
"Luke’s still suffering with his achilles, he’s not fully fit yet,” manager Mick McCarthy said. "A grumbling achilles is not easy to get shot of.
"And Stephen Hunt has got a bit of a virus and has been laid a bit low so he’s not ready yet.”
Hunt’s younger brother Noel is available again having been ineligible against his parent side Leeds last weekend.
McCarthy says winger Cameron Stewart came through Tuesday's 3-2 U21s victory over Brentford in which he score the winning goal.
It was the 23-year-old's first game since he suffered a hamstring injury but the Town boss says the former Hull man has a battle on his hands to win a place in the side.
"I thought he did much better in the U21s the other day and is looking fitter," he added.
"He’s just got to keep going. It’s not easy for him to get in the team at the minute, they’re playing well.”
Bolton have a concern over striker Craig Davies who has a hamstring problem with on-loan Cardiff man recall Joe Mason his likely deputy if he misses out, while youngsters Conor Wilkinson and Zach Clough are other options. Full-back Kevin McNaughton remains out with a hamstring injury.
Veteran Icelander Eidur Gudjohnsen, who rejoined the Trotters earlier in the week 14 years after leaving the club, is expected to be on the bench.
The 36-year-old was targeted by Town in the summer of 2000 after the Blues had beaten Bolton to a place in the Premier League - his last game for the Trotters was the first leg of the play-off semi-final - and was also linked on a number of subsequent occasions.