The former Sunderland man tore a muscle in his thigh in the recent 2-1 defeat at Portman Road against West Ham and is likely to miss both Saturdays game against West Brom and Tuesday's game against Walsall at Portman Road.
Speaking of the injury sustained to the Official Club Website, Town Physio Dave Williams said : "Chris has suffered a muscle tear right at the top of the front of his thigh, near the groin area."
"Hopefully he will return to training within the next week or so but at best we are probably looking at just before the Wimbledon match."