Match ends, Newcastle United 2, Nottingham Forest 3.
Nottingham Forest scored in extra time to hand Newcastle a third consecutive defeat in a thrilling EFL Cup second-round tie at St James' Park.
Tyler Walker got the final touch on Jack Hobbs' header in the 97th minute to help Forest knock out their Premier League hosts.
Aleksandar Mitrovic put Newcastle ahead early on before Forest striker Jason Cummings scored twice in two minutes.
Rolando Aarons equalised with a fine drive from outside the box.
However, lax defending from Rafael Benitez's side saw Hobbs rise unmarked from a corner to head on goal, with Walker stealing in to deflect the ball past former Forest goalkeeper Karl Darlow.
They were moments of quality from the hosts. Mitrovic's opener was angled powerfully and Aarons drove at pace at the Forest defence before working the ball onto his weaker right foot and firing high past Jordan Smith.
But a side featuring 10 changes from the team that lost 1-0 to fellow promoted side Huddersfield at the weekend were again defensively frail and at times struggled alarmingly against Championship opponents.
For Forest's first, Zach Clough collected a cut-back in space before directing a cross towards Cummings, who easily got between two Newcastle defenders to head in.
Cummings, who joined from Scottish side Hibernian in the summer, then ran on to a ball forward to deftly lift it over the onrushing Darlow.
- 42SterrySubstituted forLazaarat 58'minutes
- 5HanleyBooked at 85mins
- 35BarlaserSubstituted forHaydenat 70'minutes
- 16AaronsSubstituted forRitchieat 77'minutes
- 45MitrovicSubstituted forJoseluat 105'minutes
- 4MancienneBooked at 111mins
- 42WorrallBooked at 83mins
- 31BouchalakisSubstituted forMcKayat 45'minutes
- 17BreretonSubstituted forWalkerat 77'minutes
- 35CummingsSubstituted forMurphyat 97'minutes
- 20DowellSubstituted forHobbsat 62'minutes
- Darren England
- Shots on Target
Second Half Extra Time ends, Newcastle United 2, Nottingham Forest 3.
Attempt missed. Tyler Walker (Nottingham Forest) left footed shot from the left side of the box is just a bit too high.
Attempt missed. Mohamed Diamé (Newcastle United) header from the centre of the box is just a bit too high following a corner.
Corner, Newcastle United. Conceded by Daniel Fox.
Delay in match Michael Mancienne (Nottingham Forest) because of an injury.
Attempt saved. Matt Ritchie (Newcastle United) left footed shot from outside the box is saved in the bottom right corner.
Attempt missed. Jacob Murphy (Newcastle United) left footed shot from outside the box is too high.
Delay in match Joe Worrall (Nottingham Forest) because of an injury.
Corner, Newcastle United. Conceded by Joe Worrall.
Attempt missed. Mohamed Diamé (Newcastle United) right footed shot from outside the box is just a bit too high.
Michael Mancienne (Nottingham Forest) is shown the yellow card.
Attempt saved. Achraf Lazaar (Newcastle United) left footed shot from outside the box is saved in the centre of the goal.
Second Half Extra Time begins Newcastle United 2, Nottingham Forest 3.
Substitution, Newcastle United. Joselu replaces Aleksandar Mitrovic.
First Half Extra Time ends, Newcastle United 2, Nottingham Forest 3.
Attempt missed. Aleksandar Mitrovic (Newcastle United) header from the centre of the box is just a bit too high.
Henri Saivet (Newcastle United) wins a free kick in the defensive half.
Foul by Barrie McKay (Nottingham Forest).
Foul by Mohamed Diamé (Newcastle United).