Jamie Paterson scored a hat-trick as Nottingham Forest added to West Ham's woes by knocking the struggling Premier League side out of the FA Cup.

Hammers boss Sam Allardyce fielded a youthful side and the visitors went behind to a Djamel Abdoun penalty after George Moncur tripped Paterson.

Forest were dominant, and Paterson angled in the second before slotting in from eight yards to make it 3-0.

Paterson drove home his third before Andy Reid sealed a comfortable win.

Analysis

"We looked at the sides pre-match and thought it looked like it could be an uneven match-up. That was exactly the way it panned out.

"West Ham have gone out of this competition with a whimper, never at any stage looking like they were going to give Forest a problem on the day. Big Sam is now under big pressure."

Whether Forest's win counts as an upset is debatable considering the team selected by Allardyce, but the comprehensive manner of the defeat will only add to the pressure on the West Ham boss.

Allardyce said before the game that the FA Cup fell behind top-flight survival and the Capital One Cup semi-final against Manchester City in his priorities, and also bemoaned the injury problems he is having to contend with.

He fielded three debutants at Championship promotion chasers Forest in Danny Whitehead, Callum Driver and Sebastian Lletget, as well as handing George Moncur his first start.

And Allardyce's decision to put the emphasis on youth soon backfired.

Moncur's over-exuberance resulted in the midfielder making a rash challenge on Paterson, and Abdoun nonchalantly chipped in the resulting penalty.

Ravel Morrison had a dipping 22-yard free-kick tipped over by Forest keeper Karl Darlow, but the visitors struggled to make any impression as they were outplayed by the East Midlands side.

Forest striker Greg Halford found himself in on goal after a fortunate deflection and only a last-ditch sliding tackle from Driver denied him the chance to shoot from close range.

Halford, who had scored three goals in as many games operating as a makeshift forward, then headed another chance straight at keeper Adrian following a well-worked move.

Stat attack

  • This is West Ham's biggest third round defeat in the FA Cup since 1926 (5-0 v Tottenham)

Source: Opta

The home side's main regret would have been they were not further ahead, and that feeling was compounded when Eric Lichaj was through on goal only to have his low shot saved, with Henri Lansbury shooting high from the rebound.

Forest's inability to turn their dominance into more goals was almost punished as the visitors briefly rallied after the break.

Lletget had a deflected shot parried away by Darlow, who also had to palm a Morrison shot wide before the home side's nerves were settled.

Paterson made the most of Halford holding off a defender to latch onto a loose ball, surging into the area and finishing with a drilled left-foot shot.

The forward then made the most of a Lansbury lay-off to drive in his second via a deflection before completing his hat-trick with a powerful shot after running across West Ham's box.

The Hammers fell apart and, after Reid shot home, referee Martin Atkinson's final whistle was all that could end their misery.

Nottingham Forest manager Billy Davies:

"I think someone was waiting to be hit for four or five here. Our play has been very good and we created a host of chances, I'm delighted with the way we played.

"I have to say we know [West Ham boss] Sam Allardyce has bigger fish to fry... We know he has injuries like ourselves.

"But before the game we were concerned, because in [Stewart] Downing and [Matt] Jarvis, [Modibo] Maiga and [Ravel] Morrison they had £20m of talent in the front four. We had to make sure we were up for the game, I wish I had £20m worth of front players because they have very good players."

Check out a photo gallery from all of today's FA Cup fixtures on the BBC Sport Facebook page. 

Lineup, Bookings (2) & Substitutions (6)

Nottingham Forest

  • 01 Darlow
  • 18 Jara
  • 02 Lichaj (Harding - 58' )
  • 10 Lansbury
  • 16 Lascelles
  • 25 Hobbs
  • 39 Abdoun
  • 06 Moussi
  • 15 Halford (Cox - 75' )
  • 11 Reid
  • 21 Paterson (Derbyshire - 83' Booked )

Substitutes

  • 03 Harding
  • 12 Mackie
  • 17 Miller
  • 26 Evtimov
  • 27 Derbyshire
  • 28 Majewski
  • 31 Cox

West Ham United

  • 13 Adrián
  • 07 Jarvis
  • 23 Downing (Turgott - 64' )
  • 27 Potts
  • 18 Diarra (Burke - 55' )
  • 39 Driver
  • 31 Whitehead
  • 35 Lletget Booked
  • 11 Maiga
  • 15 Morrison
  • 34 Moncur (Fanimo - 55' )

Substitutes

  • 29 Spiegel
  • 32 Lee
  • 36 Turgott
  • 41 Fanimo
  • 42 Maguire
  • 43 Gordon-Hutton
  • 44 Burke
Ref: Martin Atkinson
Att: 14,397

Match Stats

Shots

22 12

On target

11 5

Corners

1 10

Fouls

7 4

Live Text Commentary

Full time

Full Time Match ends, Nottingham Forest 5, West Ham United 0.

90:00 +3:11 Full time

Full Time Second Half ends, Nottingham Forest 5, West Ham United 0.

90:00 +2:54

Attempt blocked. Simon Cox (Nottingham Forest) right footed shot from the centre of the box is blocked. Assisted by Djamel Abdoun with a cross.

90:00 +0:46 Goal scored

Goal! Goal! Nottingham Forest 5, West Ham United 0. Andy Reid (Nottingham Forest) left footed shot from the centre of the box to the top left corner. Assisted by Djamel Abdoun following a fast break.

89:30

Corner, West Ham United. Conceded by Gonzalo Jara.

89:29

Attempt blocked. Matthew Jarvis (West Ham United) right footed shot from outside the box is blocked.

88:06

Attempt missed. Andy Reid (Nottingham Forest) left footed shot from outside the box is high and wide to the right. Assisted by Djamel Abdoun.

86:47 Booking

Booking Matt Derbyshire (Nottingham Forest) is shown the yellow card for a bad foul.

86:37

Foul by Matt Derbyshire (Nottingham Forest).

86:37

Adrián (West Ham United) wins a free kick in the defensive half.

86:30

Attempt saved. Simon Cox (Nottingham Forest) right footed shot from the left side of the box is saved in the bottom left corner. Assisted by Guy Moussi.

86:00

Corner, Nottingham Forest. Conceded by Reece Burke.

84:24

Attempt missed. Henri Lansbury (Nottingham Forest) right footed shot from outside the box is close, but misses to the right. Assisted by Andy Reid.

83:09

Attempt missed. Henri Lansbury (Nottingham Forest) right footed shot from outside the box is close, but misses to the left. Assisted by Djamel Abdoun.

82:16 Substitution

Substitution Substitution, Nottingham Forest. Matt Derbyshire replaces Jamie Paterson.

81:42

Attempt missed. Simon Cox (Nottingham Forest) header from the centre of the box is just a bit too high. Assisted by Andy Reid with a cross.

80:23

Foul by Simon Cox (Nottingham Forest).

80:23

Sebastian Lletget (West Ham United) wins a free kick in the defensive half.

79:28

Offside, Nottingham Forest. Simon Cox tries a through ball, but Daniel Harding is caught offside.

78:02 Goal scored

Goal! Goal! Nottingham Forest 4, West Ham United 0. Jamie Paterson (Nottingham Forest) right footed shot from the centre of the box to the bottom left corner. Assisted by Andy Reid.

76:32

Hand ball by Henri Lansbury (Nottingham Forest).

76:21

Attempt saved. Simon Cox (Nottingham Forest) header from the right side of the six yard box is saved in the top centre of the goal. Assisted by Djamel Abdoun with a cross.

75:06

Offside, Nottingham Forest. Andy Reid tries a through ball, but Simon Cox is caught offside.

74:52

Daniel Harding (Nottingham Forest) wins a free kick on the left wing.

74:52

Foul by Callum Driver (West Ham United).

74:30 Substitution

Substitution Substitution, Nottingham Forest. Simon Cox replaces Greg Halford.

72:40

Corner, West Ham United. Conceded by Karl Darlow.

72:36

Attempt saved. Blair Turgott (West Ham United) right footed shot from outside the box is saved in the top right corner. Assisted by Sebastian Lletget.

70:32 Goal scored

Goal! Goal! Nottingham Forest 3, West Ham United 0. Jamie Paterson (Nottingham Forest) right footed shot from the centre of the box to the bottom right corner. Assisted by Henri Lansbury.

68:46

Attempt blocked. Matthew Jarvis (West Ham United) right footed shot from the left side of the box is blocked. Assisted by Daniel Potts.

67:46

Attempt missed. Jamie Paterson (Nottingham Forest) right footed shot from the centre of the box is close, but misses the top right corner. Assisted by Djamel Abdoun.

66:24

Foul by Greg Halford (Nottingham Forest).

66:24

Callum Driver (West Ham United) wins a free kick in the attacking half.

64:26 Goal scored

Goal! Goal! Nottingham Forest 2, West Ham United 0. Jamie Paterson (Nottingham Forest) left footed shot from the left side of the box to the bottom right corner.

63:59 Substitution

Substitution Substitution, West Ham United. Blair Turgott replaces Stewart Downing.

63:24

Attempt missed. Henri Lansbury (Nottingham Forest) right footed shot from the right side of the box is just a bit too high. Assisted by Gonzalo Jara.

60:25

Offside, Nottingham Forest. Andy Reid tries a through ball, but Greg Halford is caught offside.

59:50

Guy Moussi (Nottingham Forest) wins a free kick on the left wing.

59:50

Foul by Danny Whitehead (West Ham United).

58:54

Corner, West Ham United. Conceded by Karl Darlow.

58:52

Attempt saved. Ravel Morrison (West Ham United) right footed shot from a difficult angle on the left is saved in the top right corner. Assisted by Matthew Jarvis.

58:27

Corner, West Ham United. Conceded by Gonzalo Jara.

58:12

Attempt saved. Sebastian Lletget (West Ham United) left footed shot from the centre of the box is saved in the bottom left corner.

57:43

Foul by Daniel Harding (Nottingham Forest).

57:43

Sebastian Lletget (West Ham United) wins a free kick on the right wing.

57:22 Substitution

Substitution Substitution, Nottingham Forest. Daniel Harding replaces Eric Lichaj because of an injury.

56:15

Offside, Nottingham Forest. Andy Reid tries a through ball, but Djamel Abdoun is caught offside.

54:57 Substitution

Substitution Substitution, West Ham United. Reece Burke replaces Alou Diarra.

54:37 Substitution

Substitution Substitution, West Ham United. Matthias Fanimo replaces George Moncur.

52:37

Corner, West Ham United. Conceded by Jamaal Lascelles.

52:33

Attempt blocked. Danny Whitehead (West Ham United) right footed shot from outside the box is blocked. Assisted by Sebastian Lletget.

50:46

Corner, West Ham United. Conceded by Jamaal Lascelles.

50:45

Attempt blocked. Stewart Downing (West Ham United) left footed shot from the left side of the box is blocked.

49:19

Attempt blocked. Jamie Paterson (Nottingham Forest) left footed shot from the centre of the box is blocked. Assisted by Greg Halford.

47:35

Attempt saved. Djamel Abdoun (Nottingham Forest) right footed shot from the left side of the box is saved in the centre of the goal. Assisted by Henri Lansbury.

45:00

Second Half begins Nottingham Forest 1, West Ham United 0.

45:00 +1:06 Half time

Half Time First Half ends, Nottingham Forest 1, West Ham United 0.

44:20 Booking

Booking Sebastian Lletget (West Ham United) is shown the yellow card for a bad foul.

44:16

Djamel Abdoun (Nottingham Forest) wins a free kick in the defensive half.

44:16

Foul by Sebastian Lletget (West Ham United).

43:45

Corner, West Ham United. Conceded by Gonzalo Jara.

43:43

Attempt blocked. Stewart Downing (West Ham United) left footed shot from the left side of the box is blocked. Assisted by Modibo Maiga.

41:21

Attempt missed. Henri Lansbury (Nottingham Forest) right footed shot from outside the box is just a bit too high. Assisted by Andy Reid.

41:17

Attempt saved. Eric Lichaj (Nottingham Forest) right footed shot from the centre of the box is saved in the bottom right corner. Assisted by Andy Reid with a through ball.

39:25

Attempt blocked. George Moncur (West Ham United) right footed shot from outside the box is blocked.

37:28

Attempt saved. Greg Halford (Nottingham Forest) header from the centre of the box is saved in the bottom right corner. Assisted by Djamel Abdoun with a cross.

34:41

Attempt saved. Modibo Maiga (West Ham United) left footed shot from the centre of the box is saved in the centre of the goal. Assisted by George Moncur with a through ball.

31:23

Attempt saved. Jamaal Lascelles (Nottingham Forest) right footed shot from more than 35 yards is saved in the centre of the goal. Assisted by Andy Reid.

28:42

Attempt missed. Jamie Paterson (Nottingham Forest) left footed shot from outside the box misses to the right. Assisted by Djamel Abdoun.

26:45

Foul by Henri Lansbury (Nottingham Forest).

26:45

Stewart Downing (West Ham United) wins a free kick in the defensive half.

23:46

Attempt blocked. Modibo Maiga (West Ham United) header from the centre of the box is blocked. Assisted by Daniel Potts with a headed pass.

23:22

Corner, West Ham United. Conceded by Karl Darlow.

23:18

Attempt saved. Ravel Morrison (West Ham United) right footed shot from outside the box is saved in the top left corner.

22:17

Foul by Henri Lansbury (Nottingham Forest).

22:17

Ravel Morrison (West Ham United) wins a free kick in the attacking half.

15:00

Corner, West Ham United. Conceded by Eric Lichaj.

13:28

Attempt missed. Andy Reid (Nottingham Forest) left footed shot from outside the box misses to the left. Assisted by Djamel Abdoun.

11:56 Goal scored

Goal! Goal! Nottingham Forest 1, West Ham United 0. Djamel Abdoun (Nottingham Forest) converts the penalty with a right footed shot to the centre of the goal.

11:04

Penalty Nottingham Forest. Jamie Paterson draws a foul in the penalty area.

11:04

Penalty conceded by George Moncur (West Ham United) after a foul in the penalty area.

9:19

Corner, West Ham United. Conceded by Jamaal Lascelles.

0:00

First Half begins.

0:00

Lineups are announced and players are warming up.

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