CHARLOTTE, N.C. -- The Panthers are shaking up their secondary, cutting starting cornerback Bene Benwikere.
The team Friday promoted rookie Zack Sanchez from the practice squad to the 53-man roster.
The moves come in the wake of the Panthers giving up 503 yards passing to Matt Ryan and 300 yards receiving to Julio Jones in a 48-33 loss to the Atlanta Falcons on Sunday.
Benwikere started all four games this season for the Panthers. According to the analytics website Pro Football Focus, he allowed 228 yards and a touchdown on eight catches to Jones.
The moves likely mean the Panthers will have two new starting cornerbacks Monday night against Tampa Bay. The other starter, James Bradberry, hasn't practiced all week because of a toe injury.
Robert McClain and Daryl Worley are expected to start.
Panthers quarterback Cam Newton missed his third straight day of practice while in the NFL's concussion protocol.
Derek Anderson is expected to start at quarterback Monday night against Tampa Bay. Anderson is 2-0 as Carolina's starter, with both wins coming against the Bucs in 2014.
Newton isn't the only one hurting. Three other Carolina starters missed their third straight day of practice: running back Jonathan Stewart (hamstring), left tackle Michael Oher (concussion) and cornerback James Bradberry (toe).