Pittsburgh activated Leal (knee) from its injured reserve list Saturday ahead of Sunday's game at Atlanta, Chris Halicke of DKPittsburghSports.com reports.
After missing the Steelers' last six games recovering from an ankle injury, Leal appears poised to return to action in Week 13 at the Falcons. The rookie third-rounder should fill a rotational role on the defensive line against a run-heavy Atlanta offense.