Coleman will start over Devonta Freeman, who missed all four preseason games with a hamstring injury but is expected to play in Monday night's opener against Philadelphia. Coleman returned from a hamstring injury to play the final two games.
More changes could be coming as Quinn confirmed veteran free-agent tackle Jake Long is expected to have his second workout with the team later this week.
The Falcons signed running back Jahwan Edwards to the practice squad on Tuesday.
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