Smith made a big revelation in Anderson's injury update.
Atlanta Falcons linebacker Troy Andersen faces potential sideline time due to a shoulder injury.
He had recently recovered from a concussion suffered in Week 1.
Coach Arthur Smith lacks information on Andersen's status pending MRI evaluation.
Andersen ranked third in tackles with nine in the loss to the Detroit Lions.
If Andersen can't play, Nate Landman is likely to start alongside Kaden Elliss.
Landman impressed during the summer, securing the No. 3 linebacker position.
The Falcons face the Jacksonville Jaguars in their next game, Sunday at 9:30 a.m.