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The likelihood increased Saturday that the Green Bay Packers will be without some key contributors for their game Sunday at unbeaten Carolina.

Cornerbacks Sam Shields (shoulder) and Quinten Rollins (neck) and wide receiver Ty Montgomery (ankle) were downgraded to doubtful on the Packers' injury report. Shields and Rollins sustained their injuries during the Packers' 29-10 loss Sunday at Denver. Montgomery suffered his ankle sprain Oct. 18 during Green Bay's 27-20 victory over San Diego.

Shields, the Packers' top cornerback, didn't practice all week and figures to be replaced in the starting lineup by rookie Damarious Randall.

Meanwhile, the Packers (6-1) added tackle Bryan Bulaga (knee), guard T.J. Lang (illness) and linebacker Mike Neal (hip) to the injury report. Bulaga and Lang are probable to face the Panthers (7-0) and Neal is listed as questionable.

No further information was available regarding the injuries to Bulaga and Neal or Lang's illness.