Jammie Robinson: Everything you need to know

Detroit signed Robinson to a one-year contract Wednesday, Jeremy Fowler of ESPN.com reports. Robinson's most recent NFL regular-season action came in Week 7 last season with Carolina. He was cut shortly thereafter having logged just 73 defensive snaps over 21 contests with the Panthers across two seasons, though he also played extensively on special teams. Robinson will give the Lions some depth in a secondary that won't have Brian Branch (suspension) for Monday's game against Tampa Bay and that is also dealing with several injuries.

Robinson (knee) was listed as a DNP on Friday and has been ruled out ahead of Sunday's game against the Broncos. Robinson was limited during Wednesday's practice, but he ended the week with consecutive DNPs and he will miss his second game of the regular season. With starting strong safety Nick Scott (hamstring) also ruled out ahead of Sunday's game, Lonnie Johnson will likely step up as the Panthers' starting strong safety alongside free safety Xavier Woods.