The Pittsburgh Steelers have activated defensive tackle Derrick Harmon from injured reserve after he missed the past four games with a foot injury.
Harmon was carted off the field after suffering the injury Oct. 1 against the Cleveland Browns. A source had told NFL Network's Ian Rapoport at the time that the Steelers did not consider Harmon to have a long-term injury, and he was activated following Pittsburgh's bye after missing the minimum of four games.
The 23-year-old Harmon was Pittsburgh's first-round draft selection last year, and he recorded 27 tackles and three sacks in 2025 as a rookie.
He had the game-winning strip sack of Bengals quarterback Joe Burrow in Pittsburgh's Week 3 victory over Cincinnati. Those teams will face off again this week on "Sunday Night Football," with Harmon listed as questionable.
Harmon was listed as a full participant in Friday's walk-through after being limited in the first two practices of the week.
"Just make sure my foot feels good," Harmon said Friday of his goals for the week of practice, adding that he thought he accomplished them. "I can still strike blocks, and I got the playbook down, of course, but still just fine-tuning that part of things."
In a corresponding move Saturday, the Steelers waived cornerback Terell Smith.
ESPN's Brooke Pryor contributed to this report.