The Jets have released S Marcus Gilchrist and waived CB Nick Marshall and FB Chris Swain, the team announced Thursday.
Gilchrist was due $6 million in salary this season, and the Jets cleared $4.6 million in cap space by releasing him.
The 28-year-old had 66 tackles last season before injuring his knee in Week 14 and winding up on injured reserve.
The Jets drafted two safeties -- Jamal Adams and Marcus Maye -- during last week's NFL Draft, making Gilchrist expendable.
Marshall, 24, was recently suspended for the first four games of the 2017 season for violating the NFL's performance-enhancing substance policy.