Hamstring holds back RB Chris Ivory
Clark is also sidelined with a hamstring injury. Jo-Lonn Dunbar moves into the starting lineup.
The Falcons are sitting out cornerback Dominique Franks, running back Antone Smith, linebacker Spencer Adkins, offensive tackle Garrett Reynolds, offensive guard Mike Johnson, defensive end Lawrence Sidbury, defensive tackle Trey Lewis and third quarterback John Parker Wilson.
Information from The Associated Press was used in this report.
MORE NFL HEADLINES
- Saints top Panthers to take NFC South lead
- Sources: Redskins' Hall tears Achilles again
- Judge rejects Hernandez trial venue change
- Cowboys hopeful as Romo doesn't practice