The Seattle Seahawks have placed four-time Pro Bowl safety Kam Chancellor on injured reserve, ending his season. They also waived offensive lineman Mark Glowinski, and promoted cornerback Mike Tyson and linebacker Kache Palacio from the practice squad to the 53-man roster, per the team website. The Seahawks had been holding out hope that the neck injury Chancellor suffered might eventually heal up enough for him to return. However, there have also been reports to indicate this injury might threaten Chancellor’s career.