Atlanta Falcons running back Devonta Freeman will not play Sunday when the team travels to Pittsburgh to take on the Steelers. Dan Quinn informed the media Monday that Freeman had been placed in the league’s concussion protocol.

Freeman left the field during Sunday’s practice with what Quinn thought was a heat-related issue.

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“I didn’t think he was going to come back,” said Quinn Sunday. “He had some heat stuff that he dealt with from the first practice and then again today. I didn’t get a chance to go in and see him yet, but I’ll find out.”

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Quinn did not offer a timetable nor did he say whether Freeman would miss Games 3 or 4 of the preseason.

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Tevin Coleman will likely get more reps now to show he’s a more-than-capable backup to Freeman should the team need him to step in. Terron Ward, who looked good in Thursday’s game versus Miami, and rookie Brian Hill should also benefit greatly from the extra work while Freeman heals.