Auburn cornerback Jonathan Mincy, who was charged with marijuana possession earlier this summer, also won't start the game.
"We have a plan, and they know the plan," Malzahn said. "Me and Coach Lashlee and the rest of the guys know it."
Sophomore Jeremy Johnson, who passed for 422 yards and six touchdowns in six games last season, will start in place of Marshall.
Last season Marshall passed for 1,976 yards and 14 touchdowns and added 1,068 yards and 12 scores on the ground while leading the Tigers to the BCS National Championship game.
- Chris Johnson