ATL will be without starting center Dewayne Dedmon for the next 3-6 weeks.

According to the team's official release, Dedmon suffered the injury last weekend but an MRI revealed a stress reaction of his left tibia today.

Look for Mike Muscala & rookie John Collins to take on a good deal of Dedmon's workload - it'll be valuable PT for Collins, who's shown strong ability during his first campaign.