The Packers placed Stackhouse (undisclosed) on the active/PUP list Tuesday, Rob Demovsky of ESPN.com reports.
The nature and severity of Stackhouse's injury is unknown, but he's eligible to return to training camp practice at any time once he's fully recovered from his injury. He signed with the Packers in May of 2025 as an undrafted free agent and finished his rookie campaign with 12 tackles (two solo) across 13 regular-season games.