The Buccaneers signed Walker off the Colts' practice squad Monday, Ian Rapoport of NFL Network reports.
Walker's last in-game action came with the Dolphins in 2024, when he appeared in 14 contests and recorded 68 total tackles, including 1.0 sacks, and two passes defensed, with one interception. Now with the Buccaneers, Walker is likely to play a depth role in the team's inside-linebacker corps.