Steelers Now
The Pittsburgh Steelers have claimed Sebastian Castro off of waivers following the release of Juan Thornhill on Monday.
After the Pittsburgh Steelers released veteran safety Juan Thornhill, they also had a corresponding move. On Monday, the Steelers claimed Sebastian Castro off waivers.
The #Steelers have claimed rookie safety Sebastian Castro off waivers from the #Buccaneers and waived veteran safety Juan Thornhill, the team announced.
— Alan Saunders (@ASaunders_PGH) November 10, 2025
Castro was originally signed as an undrafted free agent out of Iowa in April. He spent the entire training camp and preseason with the team. One of his calling cards at Iowa was his versatility as a slot defender and safety.
After the preseason, Castro was cut in the final roster trimmings but was brought back to the team’s practice squad. On September 30th, the Tampa Bay Buccaneers signed him off the Steelers’ practice squad.
During his time in Tampa, Castro played in just one game and recorded a tackle against San Francisco in a 30-19 victory. On November 8th, the Buccaneers waived him.
The exchange will bring a familiar face back, but it will also cut some experience in the back end. However, it appears Jalen Ramsey is transitioning to play more at safety. Castro will join Ramsey, Kyle Dugger, Jabrill Peppers, and Chuck Clark in the safeties room.
This article originally appeared on Steelers Now: Steelers Bring Back Versatile Rookie Defensive Back
