Detroit linebacker Stephen Tulloch said Thursday on his Instagram account that he no longer will be with the Lions.
The team has yet to make his release official. He had been the team's starting middle linebacker since coming to Detroit from Tennessee in 2011.
Tulloch struggled at points during the 2015 season, including being taken off the field in certain situations for the first time in his Lions career. He still led Detroit in tackles with 107 and was a primary player on rushing downs.
He was due $7.3 million in 2016, the final year of his contract.