Dave Birkett has reported via Twitter that the Lions will release starting Right Guard Stephen Peterman.

Lions will release OG Stephen Peterman today, per a person familiar with the decision. Peterman started every game at RG the last 3 years

— Dave Birkett (@davebirkett) February 5, 2013

Peterman, in the final year of his contract, was slated to count for $3.278 million against the 2013 salary cap. The move frees up $3.25 million in cap room and will reduce their active roster cap commitments to about $123 million. I would expect the Lions to continue to be active in the coming days as they try to create cap room to have a workable free agency period.