What happened: Atlanta placed starting cornerback A.J. Terrell Jr. on injured reserve. The club signed defensive lineman Zach Harrison to the 53-man roster in the corresponding move.

Why it matters: Terrell's absence removes a starting Harrison moves to the active roster after recent practice-squad elevations, giving Atlanta another defensive-line option up front.

What to watch: Watch who takes Terrell's reps at cornerback and how Harrison is deployed in the line rotation.