With the team off the field Thursday, McCarthy says a decision on who gets the first opportunity to run the offense after Rodgers against the Rams won't be made until after practice Friday.
Matt Flynn and Scott Tolzien received significant playing time with Rodgers held out of Green Bay's first game last weekend.
Flynn made the start and played most of the first half in the Packers' 20-16 loss at Tennessee on a rainy Saturday night.
But Tolzien put up better stats when he had his chance in the challenging weather conditions and may have earned an extended look.
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