Mariota a challenge for New England’s defense

Tennessee Titans quarterback Marcus Mariota, right, gets set to pass as quarterbacks coach Jason Michael acts as a defender during an NFL football practice Wednesday, Jan. 10, 2018, in Nashville, Tenn. The Titans are scheduled to play the New England Patriots in an AFC divisional round playoff game Saturday. (AP Photo/Mark Humphrey)
New England Patriots defensive tackle Alan Branch takes questions from reporters in the team's locker room following an NFL football practice, Wednesday, Jan. 10, 2018, at Gillette Stadium, in Foxborough, Mass. The Patriots are scheduled to host the Tennessee Titans in an NFL divisional football AFC playoff game, Saturday, Jan. 13, 2018, in Foxborough. (AP Photo/Steven Senne)

FOXBOROUGH, Mass. — Safety Duron Harmon and his buddies on the New England defense know they have to deal with Marcus Mariota’s “unique skill” set when the Tennessee Titans visit the Patriots for Saturday night’s AFC divisional playoff game.