Cruikshank (hamstring) was placed on injured reserve Wednesday, Dan Wiederer of the Chicago Tribune reports.
Cruikshank missed Week 11 due to his hamstring injury, but he returned for the Bears' Week 12 loss to the Jets in a limited role. Although he avoided Wednesday's injury report, Cruikshank will now be sidelined the next four games, at minimum, with his first opportunity to return coming in the regular-season finale against the Vikings.