Jalen Milroe rushed for a career-high 185 yards and ran for four touchdowns as No. 11 Alabama never trailed in a 42-13 victory against No. 15 LSU in an Southeastern Conference showdown Saturday night in Baton Rouge, La.Milroe, who also passed for 109 yards, matched his best single-game rushing touchdown total and surpassed his previous rushing yardage high of 155, both of which came in a 42-28 victory against LSU last season. The Crimson Tide (7-2, 4-2 SEC) strengthened their College Football Playoff chances with their first conference road victory of the season.Garrett Nussmeier passed for 239 yards and a touchdown, threw two interceptions and lost a fumble as the Tigers (6-3, 3-2) suffered a major blow to their already slim playoff hopes.Alabama outgained LSU 420-343 overall and held a 311-104 advantage in rushing yards.Trailing 21-6, the Tigers drove to the Crimson Tide 4-yard line on their first possession of the third quarter, but Deontae Lawson intercepted a Nussmeier pass in the end zone on second down. Alabama then drove 80 yards, the final 19 of which came on Milroe’s third rushing touchdown.The score held at 28-6 until the first play of the fourth quarter, when Milroe ran 72 yards for his final score. Richard Young added an 8-yard touchdown for the Crimson Tide with 2:07 left before Nussmeier threw a 12-yard touchdown pass to Kyren Lacy with 11 seconds remaining.