The Patriots have agreed to terms with safety James Sanders on a three-year contract.
Sanders, 25, turned down more money elsewhere to return to the Patriots.
Sanders' agent, Steve Feldman, confirmed the agreement.
"It gives him a chance to grow and become a playmaker," Feldman said. "He stays in the same system with a championship team. They know him. He knows them. It was the right fit."
Sanders, who enters his fifth NFL season, started all 14 games in which he played last year. He was credited by Patriots coaches with 66 tackles, sixth best on the team, and added one interception.
In the past, Sanders has been credited by Patriots coaches with aiding the overall communication of the secondary, as his knowledge of the overall defense is considered valuable.
He is a projected starter at safety for 2009 alongside Brandon Meriweather.