The Jacksonville Jaguars are heading to the AFC Championship Game for the first time since 1999.
Rookie Leonard Fournette ran for 109 yards and three touchdowns as the Jaguars stunned the Steelers 45-42 in Divisional Round action in Pittsburgh.
Jacksonville will face the New England Patriots in the AFC Championship next Sunday in Foxboro seeking its first-ever trip to the Super Bowl.
The Jags are 0-and-2 all-time in conference championships, losing to Tennessee in 1999 and the Patriots in 1996.
Blake Bortles finished 14-of-26 passing for 214 yards and a TD for the Jaguars, who led 21-0 early in the second quarter and scored 17 points in the fourth to earn the win.
Ben Roethlisberger threw for 469 yards and five touchdowns for the Steelers, who were seeking a rematch with the Patriots in the AFC title game.
Pittsburgh lost to New England 36-17 last year.