Eifler (undisclosed) was placed on injured reserve by the Titans on Monday, Jim Wyatt of the team's official site reports.
The linebacker signed with Tennessee just three days ago. Eifler will now need to reach an injury settlement with the Titans to have a chance to see the field this season. The former Falcon played on 54 special-teams snaps with Atlanta across the 2023 and 2024 campaigns.