NASHVILLE, Tenn. — The Titans on Saturday promoted linebacker Justin Staples (6-4, 245, Illinois) to their active roster from the practice squad.
The team placed linebacker Deiontrez Mount on injured reserve.
Mount suffered a torn ACL in Wednesday's practice. A sixth round pick in the 2015 NFL draft, Mount had an interception in the team's season opening win at Tampa Bay.
Staples played in six games for the Titans last season.