The news comes just weeks after the five-time Pro Bowler and former NFL defensive player of the year signed a one-day deal with Pittsburgh to retire a Steeler. Harrison, 36, alluded to his return to the field by posting a video on Instagram of a chat with his children on Monday.
Harrison went undrafted out of Kent State in 2002 and played 10 seasons for the Steelers. He spent last season with the Cincinnati Bengals.
The Steelers are 2-1 heading into Sunday's Week 4 game at home vs. the Buccaneers.
- Marc Weinreich