Pouncey is out of action with what has been described as a "very minor" sprained right foot, and will miss the first couple of days of camp. Adams, who underwent a back procedure on July 20, will miss about four weeks of action.
The other players on the PUP list are backup quarterback Bruce Gradkowski, cornerback Senquez Golson and linebacker Shawn Lemon.
Neither Thomas nor Wagner can participate in the game as both prepare to take on the Patriots in next week's Super Bowl.
Jackson led Indianapolis with 140 tackles in 2014, including four sacks while Adams totaled 87 tackles and grabbed a team-high five interceptions.
The following players for the
Polamalu has missed the previous two games and four of the last seven due to numerous injuries. His teammates scoffed at the idea that the Steelers are better off without the services of Polamalu, after he was a surprise inactive in Week 17. However,
Pittsburgh is a 3-point home favorite against Baltimore.
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