Seymour spent last season in a reserve role with the Panthers, making 22 tackles and breaking up four passes. His shoulder injury appears serious, however, so Corn Elder will likely fill in for him.
Seymour was thought to be dealing with an undisclosed injury, but actually just had some unofficial paternity leave. The 24-year-old struggled in the preseason opener but current sits atop the Panthers' depth chart at cornerback with James Bradberry (groin).
Seymour is not on the practice field Saturday, Jourdan Rodrigue of The Charlotte Observer reports.
Seymour started just two contests for the Panthers last season and managed a meager 22 tackles for the club. He also struggled in his first preseason contest, which doesn't bode well consider the team listed him as a starter on the initial depth chart.
Seymour recorded 22 tackles and four pass breakups over 15 games in 2017.
Seymour, who was acquired from the Bills in early September, didn't have a great season from either a fantasy or real-life standpoint given his meager statistical production coupled with the fact he finished as Pro Football Focus' sixth-lowest graded cornerback out of 120 qualifiers. He'll look to bounce back in 2018, but won't be worthy of IDP consideration.