re: Which P5 Conference teams have LSU never played before?

ACC: Louisville, North Carolina St., Pittsburgh, Virginia

Big Ten: Michigan, Minnesota, Northwestern, Purdue

Big 12: Kansas

Pac-12: California, UCLA, Washington St.

FBS Independents: BYU

American: Connecticut, Memphis, Navy, Temple, Tulsa, UCF, USF

Conference USA: Charlotte, Florida Atlantic, Florida International, Marshall, Old Dominion, UTSA

MAC: Ball St., Bowling Green, Buffalo, Central Michigan, Northern Illinois, Toledo, UMass, Western Michigan

Mountain West: Air Force, Boise St., Hawaii, Nevada, New Mexico, San Diego St., UNLV

Sun Belt: Georgia Southern, Georgia St., South Alabama, Texas St.