Atlanta starting center Todd McClure and Seattle wide receiver Mike Williams both left Sunday's game with injuries and were questionable to return.
McClure had a knee injury the team said, while Williams sustained a head injury. McClure was replaced by Joe Hawley.
Williams' injury briefly appeared more serious as he was face down on the field after delivering a block on Marshawn Lynch's 11-yard touchdown run. Williams got up and jogged off the field on his own.
Seattle also lost linebacker Matt McCoy earlier in the game to a right leg injury after teammate Aaron Curry crashed into him during punt coverage.