Town suffered more injuries during Saturday's 1-0 loss at Highbury. Gary Croft went off in the first half with a knee injury adding to the defensive casualty list.
Already out with injuries were Fabian Wilnis, Hermann Hreidarsson and John Scales while John McGreal was missing his last game through suspension.
Up front Alun Armstrong missed out with a back injury. Town now have two weeks to get as many players as possible fit.
Town's only long-term casualty Guillermo Graaven is still in the early stages of training after his ankle operation. Town manager George Burley said that the Dutchman can "basically write off this season."