Favre was listed questionable on the injury report Friday, a status that means he has a 50-50 chance of playing in the game.
Favre wore a walking boot on his left foot during the first three days of the week and didn't practice until Friday, when he only participated on a limited basis. He is heading into Sunday assuming that he is still the starter, and barring some setback, that is highly likely to be the case.
Complicating Childress's decision is the historical significance of Favre's streak and the 41-year-old's poor play this season. His 68.0 passer rating is 30th in the league, and he has committed 14 turnovers in the first six games.
The Associated Press contributed to this report.