Killebrew (concussion) is active for Sunday's game against the Browns, Brianna Dix of the Buccaneers' official site reports.
Killebrew entered the league's concussion protocol following the Buccaneers' Week 1 loss to the Bengals. He was listed as questionable for Week 2, but after being evaluated by an independent neurologist, Killebrew has been cleared to play in Sunday's home opener.