– The jarring impact of LSU running back Leonard Fournette's shoulder with crumpling Auburn defensive back Blake Countess blew the top off of sold-out Tiger Stadium — and more than likely resonated with Heisman Trophy voters.

And if that 40-yard touchdown run wasn't eye-catching enough, Fournette added a 29-yard score in which safety Tray Matthews tried to tackle the running back high, only to be sent tumbling, heels-over-head, toward the sideline.

The 6-1, 230-pound Fournette finished that play with a finesse move that buckled the knees of safety Nick Ruffin, and No. 13 LSU was well on its way to a 45-21 victory over 18th-ranked Auburn on Saturday.

Fournette gained a career-high 228 yards, with three TDs, on 19 carries (an average of 12 yards per carry).

Which run was Fournette's favorite?

"No favorite run," he said. "I have favorite guys and that's my [offensive] line."

As for bowling over tacklers, he said simply, "It was fun. I did it in high school, now it's in college. The crowd reacted wonderful."

Fournette was rested for much of the second half — perhaps the only thing preventing him from breaking Alley Broussard's single-game LSU rushing record of 250 yards, set against Mississippi in 2004.

"The bottom line is we got our rear kicked," Auburn coach Gus Malzahn said. "They did a good job blocking and the kid [Fournette] broke some tackles, too, and made a few big runs. But at the same time, in the first half the [Auburn] offense was awful. They really didn't give our defense any kind of a spark or any kind of hope."

Fournette has 387 yards and six TDs for LSU (2-0, 2-0 Southeastern Conference). Peyton Barber, who had topped 100 yards in each of his first two games, gained 34 yards on seven carries for Auburn (2-1, 0-1).