White was questionable after missing two days of practice the past week with a left ankle injury. White sat out Atlanta's previous game, a win over Arizona.
Robert Alford was declared out Saturday, depriving Atlanta of a starting cornerback for a third straight game because of a wrist injury. Alford could have helped against the Packers' potent offense.
For Green Bay, Shields has been cleared after suffering a concussion during last week's victory over New England.
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