The Buffalo Bills cut veteran linebacker Keith Rivers.
Rivers' release saves $1.7 million in salary-cap room.
Rivers was starting before he hurt his groin and was replaced by Preston Brown.
Rivers signed a two-year contract with the Bills last season.
Rivers is a former Cincinnati Bengals first-round pick from USC. He's also played for the New York Giants.
He had just 16 tackles last season.
The Bills get back Kiko Alonso from an injury last season.
They could also bring back Brandon Spikes, a free agent.
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Aaron Wilson covers the Ravens for The Baltimore Sun
Aaron Wilson covers the NFL for National Football Post, his second stint at the Post. He has previously written for Pro Football Talk and FOX Sports-Scout. Entering his 13th year covering the Baltimore Ravens, he's a beat writer for The Baltimore Sun. Wilson has also covered the Jacksonville Jaguars and Tennessee Titans.