(Nashville, TN)  --  Former Oregon and current Tennessee Titans rookie quarterback Marcus Mariota will not play in the team's season finale on Sunday.  Interim head coach Mike Mularkey say it's not worth the risk.  Mariota sat out last week's game with a sprained MCL.  The first-year signal-caller threw for more than 28-hundred-yards, 19 touchdowns and 10 interceptions in 12 games this year.