Palmer (knee) is questionable to play in Week 4, Titans' senior writer Jim Wyatt reports.
Riggs (hamstring) is listed as out for Sunday's Week 4 matchup with Houston, Titans' senior writer Jim Wyatt reports.
Position: Tight End
Walker (hamstring) is listed as questionable for Sunday's game against the Texans.
Searcy (ankle) has been ruled out of Sunday's matchup with the Texans, and could miss several weeks.
Status: Injury Reserve
Position: Offensive Tackle
Bell is currently on the injured reserve list with a season-ending ankle injury, Tyler Dragon of NFL.com reports.