The Lions have placed WR/KR Adam Jennings on the Injured Reserve List ending his season due to a ankle injury he suffered in his first game with the team.  Jennings was probably going to eventually bump rookie RB Aaron Brown as the kickoff returner.  Brown has returned 21 kickoffs for 463 yards (22.0 avg) this season but he will lose his starting spot to WR Derrick Williams who was a 3rd round pick out of Penn State.