The team announced the move Monday.
Baker started 61 of his 70 career games, but injuries have hindered his progress. He missed last season after tearing his right patellar tendon during a preseason game, has undergone three back surgeries and even lost his starting job during the 2011 season.
After starting all 16 games in 2012, when the Falcons won the NFC South and reached the NFC championship game, Baker was re-signed to a six-year, $41.5 million deal.
AP NFL website: www.pro32.ap.org and www.twitter.com/AP-NFL