The Panthers placed Jackson (groin) on injured reserve Wednesday.
Jackson was injured in Sunday's loss to the Browns, and will now miss at least the next four weeks. Carolina's secondary took a number of big hits in the injury department versus Cleveland, as Jaycee Horn suffered a torn quadriceps and will be out 6-to-12 weeks. Will Lee, Akayleb Evans and Chau Smith-Wade will handle cornerback duties for the foreseeable future.