Chase McGrath’s 40-yard field goal as time expired lifted No. 6 Tennessee to an epic 52–49 victory over No. 3 Alabama on Saturday night in Knoxville, Tenn. Tennessee (6–0, 3–0 Southeastern Conference) snapped a 15-game losing streak against the Crimson Tide (6–1, 3–1) and beat Alabama for the first time since Nick Saban became the…