JACKSONVILLE, Fla. (AP) — Marcus Mariota came off the bench and directed three scoring drives, including one in the fourth quarter, and Tennessee beat Jacksonville 9-6 Sunday for their third straight victory in the series. Mariota replaced Blaine Gabbert in the first quarter after Gabbert was knocked out of the game with a concussion. Mariota sat out last week's victory against Houston because of an elbow injury sustained in the season opener. Mariota had been experiencing arm weakness along with numbness and tingling in two fingers.