Porter (back) has been ruled out ahead of Thursday's game against the Browns, Brooke Pryor of ESPN.com reports.
Porter had previously been listed on the Steelers' Week 4 injury report due to conditioning, but he may have had his back flare up on him during Wednesday's practice. He turned in a full practice Tuesday, but he downgraded to limited participation a day later. As a result, Porter's 2026 debut will be delayed at least another week. The Steelers will lean on Jamel Dean, Asante Samuel and Daylen Everette as their primary options at the outside cornerback spots Thursday.