Killebrew is a core special teamer for the Steelers, and has played over 59% of the special teams snaps for his teams in every season of his career. If you see him on the field on defense, serious injuries have hit or it's garbage time. Still, he's obviously valued. 

The soon-to-be 28-year-old only played on special teams with the Lions in 2020. He'll likely do the same with the Steelers.

Killebrew rarely saw the field last year, playing just 87 defensive snaps. His special teams value should be enough to secure his 2020 roster spot.

Killebrew sat out last week's loss to the Bears due to the concussion, but he was able to clear the concussion protocol to practice fully Thursday and Friday. The 26-year-old should serve his usual role on special teams for the Lions.