Steelers linebacker Robert Spillane on Thursday became the third Pittsburgh player placed on the reserve/COVID-19 list this week.
Fellow linebacker T.J. Watt landed on the list Monday and offensive lineman Joe Haeg was added Wednesday.
Winless since Nov. 8, the Steelers (5-5-1) host the AFC North rival Baltimore Ravens (8-3) on Sunday afternoon.
Spillane, 25, has 26 tackles in 10 games (one start) this season.
Spillane has tallied 82 tackles, two sacks and one interception in 32 games (eight starts) with the Tennessee Titans (2018) and Steelers.
--Field Level Media