LSU's second victory over a Top 10 team vaulted it to No. 2 in the AP Top 25.
The new position adds to the buzz for LSU's November 9 meeting with top-ranked Alabama.
The Crimson Tide and Tigers are two of a handful of teams that have consistently played at a high level for close to two months.
Florida and Georgia dropped out of the top tier with Saturday defeats, and they now sit behind Notre Dame in the grouping of one-loss teams.
With the additions of Minnesota and Appalachian State to the AP poll, all 12 undefeated teams are now ranked.