Dean Gerken starts in goal for the first time in the league this season as the Blues face Leeds at Portman Road, one of four changes from the team which lost 1-0 to Sheffield United in the FA Cup last weekend.
Regular keeper Bartosz Bialkowski is out with a minor calf injury, while Cole Skuse, Joe Garner and Martyn Waghorn come back into the starting line-up for Luke Hyam, Kevin Bru and Freddie Sears, who are all subs.
Young defender Chris Smith is on an inexperienced bench having been recalled from his loan spell at Chelmsford.
Leeds make seven changes from the side which lost 2-1 to Newport County in the FA Cup last week.
Town: Gerken, Iorfa, Chambers (c), Knudsen, Kenlock, Skuse, Connolly, Waghorn, McGoldrick, Celina, Garner. Subs: M Crowe, Hyam, Sears, Drinan, Bru, McDonnell, C Smith.
Leeds: Wiedwald, Berardi, Jansson, Cooper (c), Anita, Phillips, O'Kane, Cibicki, Hernandez, Alioski, Roofe. Subs: Lonergan, Lasogga, Grot, Dallas, Sacko, Shaughnessy, Klich. Referee: Robert Jones (Merseyside).