The Falcons signed Davis on Wednesday.
Davis (knee) was activated from injured reserve Saturday.
Davis (knee) returned to practice Thursday, opening up the 21-day window for Pittsburgh to remove him from IR.
The Steelers placed Davis on injured reserve Wednesday.
Davis (knee) has been ruled out for Sunday's game against the Seahawks.
Davis (knee) has been ruled out for Sunday's game against the Packers, Adam Caplan of SiriusXM NFL Radio reports.
Davis (knee) has been ruled out for Sunday's game against the Bengals, according to Teresa Varley of the Steelers' official site.
The Steelers selected Davis in the seventh round of the 2020 NFL Draft, 232nd overall.