Veteran safety Antrel Rolle announced his retirement from the NFL on Monday.
"I'm done, yeah, I'm done," Rolle told NFL Network.
Rolle, 33, played last year for the Chicago Bears but ended the season on injured reserve. The Bears released him on May 1 after he completed just one season of a three-year contract signed with the team last year. He has remained unsigned on the free-agent market.
"I'm at peace. I'm at total peace. You know, like I said, going out, you're 33 years old going on injured reserve last year, that's going to scare a lot of teams away. I understand how the business works, and I'm fine with that either way," he told NFL Network.
Rolle played in just seven games in 2015 because of ankle and knee injuries; he was placed on season-ending injured reserve in December after he suffered a serious knee injury in a November practice.
After his release, he told the New York Post that he blamed the practice surface at Halas Hall for his injury and said "the surfaces in the Chicago facilities are the worst I've ever been around."
Rolle had been durable before his time with the Bears, missing just one game for the Arizona Cardinals and New York Giants from 2006 to 2016.
He is a three-time Pro Bowl selection and has 26 career interceptions. He was a member of the Giants' Super Bowl XLVI-winning team.