McCarthy indicated Woodson injured the same toe that has bothered him at times since he broke it in 2008 and added he is confident the cornerback will play Sunday.
Woodson, the 2009 NFL Defensive Player of the Year, was a late addition to the injury list. He was limited in practice Friday.
Besides Woodson, the Packers added left tackle Chad Clifton (knee) and safety Derrick Martin (ankle) to their injury report. McCarthy is holding Clifton and Martin, who are probable for Sunday's game, out of practice on Fridays at the start of the season for rest-and-recovery purposes.
The Associated Press contributed to this report.