Match ends, Burton Albion 2, Northampton Town 4.
Northampton Town booked their place in the FA Cup fourth round with a deserved victory over Burton Albion at Pirelli Stadium.
The Cobblers had raced into a 3-0 lead after goals from Nicky Adams, Ryan Watson and Charlie Goode.
Burton reduced the deficit when Ryan Edwards gave them hope in the second minute of first-half injury time.
Sam Hoskins restored Northampton's three-goal cushion before Scott Fraser's late consolation.
League Two Northampton went ahead against a side from the division above when the ball dropped to Adams from a long throw and he fired home from 12 yards.
Keith Curle's side notched a second when Hoskins' cross picked out Watson who nodded past Burton goalkeeper Kieran O'Hara before Goode headed in from Adams' corner.
Burton pulled a goal back almost straight from the restart when Edwards latched on to a loose ball and finished confidently from close range.
Hoskins effectively made the result certain when he arrowed a low shot into the corner with 20 minutes left, although Fraser reduced the arrears with a fine curling effort late on.
The Cobblers will find out their fourth-round opponents when the draw is made live on BBC One on Monday ahead of the Arsenal v Leeds United tie. Coverage starts at 19:30 GMT.
'It's pure disappointment' - what they said
Burton boss Nigel Clough: "To go 3-0 down inside 45 minutes was extremely poor from our point of view.
"It's pure disappointment being knocked out of the FA Cup and conceding four goals. That's 11 in the last four games and we haven't kept a clean sheet for a long time.
"It's not just losing the game today and getting knocked out. It's a big financial blow to the club."
Northampton manager Keith Curle: "All the lads that came off the field had emptied the tank, they gave it everything.
"We knew it was going to be a tough game and that we would have to give it everything.
"I think the football club can be very proud of this performance and result and also of the support we had."
- 2BrayfordSubstituted forSarkicat 74'minutes
- 18NarteySubstituted forO'Tooleat 37'minutes
- 11TempletonSubstituted forSbarraat 71'minutes
- 16WhartonBooked at 58mins
- 6TurnbullBooked at 62mins
- 11WilliamsSubstituted forHarrimanat 55'minutes
- 14LinesBooked at 44mins
- 44AndersonSubstituted forPollockat 75'minutes
- 19OliverSubstituted forWarburtonat 71'minutes
- Jeremy Simpson
- Shots on Target
Second Half ends, Burton Albion 2, Northampton Town 4.
Attempt missed. Scott Pollock (Northampton Town) left footed shot from a difficult angle on the left misses to the right.
Scott Fraser (Burton Albion) wins a free kick on the right wing.
Foul by Matthew Warburton (Northampton Town).
Goal! Burton Albion 2, Northampton Town 4. Scott Fraser (Burton Albion) left footed shot from outside the box to the bottom left corner. Assisted by Oliver Sarkic.
Foul by Ryan Edwards (Burton Albion).
Nicky Adams (Northampton Town) wins a free kick on the right wing.
Attempt saved. John-Joe O'Toole (Burton Albion) left footed shot from outside the box is saved in the bottom right corner.
Corner, Burton Albion. Conceded by Nicky Adams.
Attempt blocked. Oliver Sarkic (Burton Albion) right footed shot from the right side of the box is blocked.
Substitution, Northampton Town. Scott Pollock replaces Paul Anderson.
Substitution, Burton Albion. Oliver Sarkic replaces John Brayford.
Lucas Akins (Burton Albion) wins a free kick in the defensive half.
Foul by Jordan Turnbull (Northampton Town).
Substitution, Northampton Town. Matthew Warburton replaces Vadaine Oliver.
Substitution, Burton Albion. Joe Sbarra replaces David Templeton.
Goal! Burton Albion 1, Northampton Town 4. Sam Hoskins (Northampton Town) left footed shot from the centre of the box to the bottom right corner. Assisted by Vadaine Oliver.
Attempt saved. Ryan Watson (Northampton Town) right footed shot from outside the box is saved in the bottom right corner.
Corner, Burton Albion. Conceded by David Cornell.