The Titans placed Duncan (hamstring) on injured reserve Saturday, John Glennon of NashvillePost.com reports.

Duncan is expected to miss more game action due to the hamstring injury he sustained in Week 7 at Buffalo, Jim Wyatt of the Titans' official site reports.

Duncan is questionable to return to Sunday's game against Buffalo due to a hamstring injury, Paul Kuharsky of PaulKuharsky.com reports.

Duncan (neck) was seen working out during Thursday's minicamp session, Denny Simmons of The Tennessean reports.

Duncan (neck) is inactive for Sunday's game against the Jaguars.

Duncan (wrist) is questionable to return to Sunday's game against the Seahawks, Jim Wyatt of the Titans' official site reports.