Panthers receiver Steve Smith has sore ribs and has been added to the injury list as questionable for Sunday’s game at the Jets.

It was unclear when Smith was injured. He took a knee to the back in a victory over Atlanta on Nov. 15, but hadn’t missed any practice time since.

Smith leads Carolina with 45 catches for 599 yards and four touchdowns.

Panthers reserve defensive end Charles Johnson didn’t make the trip Saturday and will miss his second straight game with a strained chest muscle.