Porter, 30, registered 48 tackles, 13 pass breakups, two interceptions and a forced fumble for the team in 2016.
The move saved the Bears $3.6 million against the salary cap, according to Kevin Patra of NFL.com, because Porter was just one season into a three-year, $12 million contract. While he played in 30 of 32 games for the Bears over the past two years, Porter battled through injuries last season.
The Bears were also loaded at cornerback after general manager Ryan Pace signed Prince Amukamara, Marcus Cooper and B.W. Webb this offseason. That trio was thrown into the mix at a position that also includes Kyle Fuller, Jacoby Glenn, Bryce Callahan, Deiondre' Hall, De'Vante Bausby, Johnthan Banks, Cre'von LeBlanc, Sherrick McManis and Rashaad Reynolds.
Suffice to say, Porter became expendable in Chicago, with Amukamara and Cooper expected to earn the starting positions in 2017.
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