The Saints ruled Callaway (knee) out for Sunday's game against the Falcons.
After coming out of last week's win over the Broncos with the knee injury, Callaway was unable to practice in any fashion Wednesday through Friday. The Saints are also listing Deonte Harris (neck) as questionable for the contest, so the team could be lacking in healthy depth behind its starting receiver trio of Michael Thomas, Emmanuel Sanders and Tre'Quan Smith.