GREEN BAY, Wis. (AP) -- Rafael Gaglianone kicked a 47-yard field goal with 3:47 left, and Wisconsin staved off No. 5 LSU's desperate last-ditch drive for a 16-14 win on Saturday in a game that dealt an early blow to the fifth-ranked Tigers' national title hopes.

LSU's frustration was on full display at the end of the game, when offensive lineman Josh Boutte was ejected for a flagrant foul after avicious blind-side hit on Wisconsin's D'Cota Dixon after the safety sealed the win with an interception with 57 seconds left.

Wisconsin's defense delivered in the clutch to back up the strong-legged Gaglianone.

Heisman Trophy hopeful Leonard Fournette ran for 138 yards on 23 carries but limped off on his final carry, a 15-yard run with less than 2 minutes left.

Les Miles' first loss in a season opener in his 12 years as LSU coach will surely put him back on the dreaded hot seat. He was nearly run out of Baton Rouge after a 9-3 season in 2015.