Head coach Dave Canales told reporters Friday that Mathis tore his ACL and will undergo surgery, David Newton of ESPN.com reports.
The 26-year-old defensive back sustained a non-contact injury during Carolina's practice Wednesday that was later confirmed to be a torn ACL. Mathis, who was claimed from the Broncos in late August, posted three total tackles and one pass defended across 75 defensive snaps in 2024.