Titans quarterback Marcus Mariota showed his toughness, staying in the game and not missing a play despite spraining his left MCL. Coach Ken Whisenhunt said Monday an MRI exam showed Mariota sprained the MCL in his left knee when hit low by Dolphins defensive end Olivier Vernon during the second quarter of a 38-10 loss to Miami. The Titans wrap up a rare four-game home stand Sunday when they host Atlanta (5-1). More...