Green Bay Packers starting cornerbacks Tramon Williams (ankle) and Sam Shields (knee) again were nothing more than observers during Thursday's padded practice.
Packers coach Mike McCarthy said Wednesday the veterans will be given every opportunity to play against Carolina, but the secondary may have to turn to backups Davon House and Casey Hayward when Panthers quarterback Cam Newton strolls into town Sunday.
Defensive lineman Datone Jones (ankle) also wasn't able to take part in the padded work. He practiced in a limited capacity in shells on Wednesday after sitting out of Sunday's 27-24 win over Miami, the first regular-season game he's missed in his two-year NFL career.
Center JC Tretter, who's on temporary injured reserve, practiced Thursday in pads for the first time since injuring his knee in the team's third preseason game against Oakland.
McCarthy was expected to speak to the media at approximately 2 p.m.
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