Johnson (shoulder) was placed on injured reserve Wednesday.
Johnson suffered a hairline fracture of his scapula during Sunday's 41-10 loss to the Cardinals and was expected to miss four to six weeks. Considering the recovery timeline, his move to injured reserve makes sense. He'll be eligible to return Oct. 24 against the Vikings if he can make a quick recovery. In the meantime, Kamren Kinchens should handle the workload at free safety.