Steelers Update Roster with Strategic Changes

The Pittsburgh Steelers have made significant changes to their roster, bringing in safety Sebastian Castro. This move follows Castro’s release from the Tampa Bay Buccaneers.
Castro’s Journey to Pittsburgh
Castro began the 2025 season on the Steelers’ practice squad. He was signed to the Buccaneers’ 53-man roster on September 30. During his time with Tampa Bay, he participated in one game.
Before joining the NFL, Castro played college football at the University of Iowa. He was an undrafted free agent after the 2025 NFL Draft.
Collegiate Performance
- Games Played: 53
- Games Started: 32
- Tackles: 163 (113 solo)
- Tackles for Loss: 14
- Passes Defensed: 18
- Forced Fumbles: 5
- Interceptions: 4
- Sacks: 2
Roster Adjustment
To accommodate Castro, the Steelers made the decision to release safety Juan Thornhill. Thornhill had been with the team as an unrestricted free agent this offseason.
Thornhill’s Career Highlights
- Seasons Played: 7
- Games Appeared: 96 (75 starts)
- Tackles: 370 (252 solo)
- Interceptions: 8
- Passes Defensed: 25
- 2025 Performance: 9 games (1 start), 35 tackles (20 solo), 1 pass defensed
These strategic changes reflect the Steelers’ ongoing efforts to enhance their defensive lineup as they progress through the season.




