Jaguars placed LG Will Rackley (concussion) on injured reserve, ending his season. Rackley suffered his second concussion of the season last week. He was reportedly dealing with a "severe" headache on Saturday morning. The effects of Rackley's first concussion lingered for weeks. It's a scary situation for the third-year pro, who has graded out near the bottom of Pro Football Focus' guard ratings. Rackley's backup is Mike Brewster, but he's also been sent to injured reserve. Jacques McClendon should get the start in Week 16.