Six UNC Starters’ Availability Uncertain Against Duke

North Carolina faces significant defensive-backfield uncertainty ahead of Saturday’s rivalry game at Duke: cornerback Tre Miller is out and feared to have a season-ending injury, while nickel defender Kaleb Cost is doubtful, though he may return in the coming weeks. Safety Greg Smith and starters Isaiah Johnson and Jordan Hall are also listed as questionable; defensive lineman Jaylen Harvey and safety Peyton Waters are probable. UNC is expected to rely on its depth, including defensive backs who may take on expanded roles in Miller’s and Cost’s absence. Duke’s key injury concern is running back Nate Sheppard, who is questionable; the teams’ availability reports could change before kickoff.