Richie Incognito informed the Buffalo Bills that he wants to play again, according to a source.
The offensive lineman retired in April.
The Bills released Incognito from the reserve/retired list, making him a free agent now able to sign with any team.
Incognito was placed on the retired list April 12, two days after Incognito informed the NFL Players Association in a tweet that he was "done" playing football. The 34-year-old later told The Buffalo News that he made the decision for health-related reasons, saying, "My liver and kidneys are shutting down. The stress is killing me."