Steelers Place Sebastian Joseph-Day on Injured Reserve

The 31-year-old defensive tackle will be sidelined for at least four games following a triceps injury.

Updated on Oct. 22, 2026 in Football

Steelers Place Sebastian Joseph-Day on Injured Reserve

The Pittsburgh Steelers officially placed defensive tackle Sebastian Joseph-Day on injured reserve on Thursday. Joseph-Day is expected to miss at least the next four games after sustaining a triceps injury.

Why it matters

The loss of Joseph-Day impacts the Steelers defensive depth during a critical stretch of the season. His absence removes a veteran presence from the lineup who has contributed 10 tackles this year.

Sebastian Joseph-Day has recorded 324 tackles, 15.5 sacks, and three fumble recoveries over a career spanning 111 games and 90 starts. He was drafted by the Los Angeles Rams in 2018.

The players

Sebastian Joseph-Day

He is a 31-year-old defensive tackle who has played 111 career games in the NFL since entering the league in 2018.

Pittsburgh Steelers

They are a professional football franchise based in Pittsburgh that competes in the National Football League.

Los Angeles Rams

They are a professional football team that originally selected Joseph-Day in the 2018 NFL Draft.

The details

The decision to place the veteran on the injured reserve list followed his absence from practice on Wednesday. Joseph-Day has been a reliable part of the defensive rotation, having played in all six games so far this season.

2018: Joseph-Day was selected in the NFL Draft.
Wednesday: Joseph-Day did not participate in team practice.
Thursday: The Steelers moved Joseph-Day to injured reserve.

Season Trajectory

This roster move forces a rotation change for the Steelers as they adjust to life without a veteran starter in the middle of the defensive line. The team must now identify which depth pieces will step up to fill his snap count over the next month of the season.

Joseph-Day will be ineligible to return to the active roster for the next four games, forcing the coaching staff to adjust their defensive front rotations. Fantasy managers and fans should expect a shift in playing time for reserve linemen to account for his absence.

The takeaway

Maintaining depth on the defensive line is essential for any team looking to sustain success through the rigors of an NFL season. Players managing minor knocks should prioritize early recovery to avoid long-term roster designations.