Tennessee Titans running back Tyjae Spears sustained his second concussion of the season during the third quarter of the game against the Jacksonville Jaguars. Head coach Brian Callahan confirmed that Spears will not be available for Week 18. In his absence, Julius Chestnut is expected to take on the lead back role if Tony Pollard is also unable to play.

• Tyjae Spears' injury raises concerns for the Titans' backfield depth.
• Julius Chestnut could be a viable pickup for fantasy managers if Spears and Pollard are out.