LSU Postgame: No. 5 Auburn 41, No. 15 LSU 7 _lowres

LSU running back Leonard Fournette (7) is tackled by Auburn defensive back Derrick Moncrief (24) in the second half of an NCAA college football game on Saturday, Oct. 4, 2014, in Auburn, Ala. (AP Photo/Brynn Anderson)

This one was a stinker.

No. 5 Auburn steamrolled No. 15 LSU 41-7 on Saturday night in Jordan-Hare Stadium, ruining the debut start of LSU’s true freshman quarterback and gashing what appeared to be an unfixable defense.

Gus Malzahn’s high-flying, up-tempo offense poured on nearly 400 yards — in the first two quarters — and Auburn soared to a 31-7 halftime lead in a crushing victory in front of a rowdy sellout crowd of 87,451.