What It Means:

This announcement comes via Shields' Instagram account. He played in just one game this season after suffering a concussion in Week 1, leaving some to wonder if the 29-year-old corner should call it a career due to his repeated issues with severe head trauma. Shields remains a high-level talent when healthy, but he was still in concussion protocol as of late January, so we'll see how the market shakes out. The Packers get $9 million off their books as a result of the move.

The Packers' secondary ranked 10th-worst this past season in opponent-adjusted Defensive Passing Net Expected Points allowed per play.