Henry was placed in the league's concussion protocol following a Week 13 loss to the Colts, Adam Schefter of ESPN reports.
Henry departed Sunday's 31-28 overtime loss to be checked for a concussion, and he's indeed been placed in the NFL's five-step protocol. He won't be eligible to suit up for game action until gaining full clearance, which puts the veteran running back's status for the Titans' upcoming Monday Night Football matchup against Miami in jeopardy. If Henry misses any time, rookie Tyjae Spears would get his first opportunity to start. Spears rushed the ball 16 times for 75 yards and added four receptions on six targets for 13 yards Sunday.