The Falcons made a surprising roster move today. It’s been a fast-moving situation for outside linebacker Lorenzo Carter, who has played in every game so far this season. The sequence of events has led to Carter being placed on injured reserve, per Falcons digital team reporter Terrin Waack. 
The situation began on Wednesday of this week, when it was reported that Carter was in the NFL’s concussion protocol. He had originally been placed on the team’s injury report under the designation of “illness” after not practicing, but Atlanta updated the designation to “concussion” by the end of the day. Carter missed the next two practices before ultimately being ruled out for tomorrow’s game.
What makes this sequence of events so surprising is that concussions rarely warrant a stint on IR. At a minimum, we’ve seen players navigate the league’s concussion protocol in days. To see Carter being ruled out for the next four weeks because of the head injury adds some concern and intrigue to the situation.
Carter had been the starter across from Matt Judon for every game this season, except for one in which the team only started one outside linebacker. In his extended absence, Arnold Ebiketie and James Smith-Williams will likely be fighting for the available snaps across from Judon.
To fill the newly open spot on the 53-man roster, Atlanta signed veteran cornerback Kevin King from the practice squad. King has appeared in all six games this season between time on the active roster and practice squad, mostly contributing on special teams.
Additionally, the Falcons announced that cornerback Natrone Brooks and defensive end Demone Harris will function as their standard gameday practice squad elevations in Week 7.