RENTON, Wash. — With three running backs listed as questionable, the Seattle Seahawks could elevate Adrian Peterson from the practice squad to play against San Francisco, coach Pete Carroll said.

Peterson was signed this week by the Seahawks due to concerns about depth at running back. Alex Collins, Rashaad Penny and Travis Homer are all dealing with injuries that left DeeJay Dallas as the only healthy running back on the roster.

Carroll didn't say it was a certainty Peterson would be elevated, but said the 36-year-old was ready if called upon.

OWINGS MILLS, Md. — The Baltimore Ravens waived tackle Cedric Ogbuehi on Friday.The team announced the move shortly after Ogbuehi was ruled out of Sunday's game at Pittsburgh with a thigh injury. Ogbuehi has appeared in two games this season with the Ravens and one with Seattle.Ogbuehi started four games last season for the Seahawks and spent his previous five NFL seasons with Jacksonville and Cincinnati.Ogbuehi was the only player listed on Baltimore's injury report who was ruled out of this weekend's game. Receiver Miles Boykin (finger) is doubtful and everyone else whose game status was listed was questionable.