Leicester advanced to the Carling Cup fourth round at the expense of 10-man Portsmouth thanks to first-half goals from Michael Morrison and Lloyd Dyer.
The Foxes went in front with barely two minutes on the clock when Dyer set up Morrison to score.
Dyer pounced just before half-time to make it 2-0 and Pompey's hopes were further dented when Richard Hughes was dismissed for abusive language.
Liam Lawrence's low shot set up a tense finale but Leicester held on.
It could have been a different story had either Kanu or David Nugent made the most of good opportunities to halve the deficit before half-time but the former headed wide while the latter drew a save from Conrad Logan in the Leicester goal.
The visitors though went into the break in a comfortable position courtesy of Morrison's close-range finish and Dyer's low, left-foot strike from the edge of the area.
Nugent worked Logan again with a shot from the edge of the area early in the second half but the home side's momentum was disrupted by Hughes' sending off in the 65th minute.
Pompey refused to lie down and, with eight minutes remaining, Lawrence followed up Joel Ward's saved effort to give the home fans hope.
However, despite further pressure an equaliser proved beyond them.
Live text and stats
Tuesday, 21 September 2010
03 Dickinson yellow card
05 Ritchie (Brown 72)
22 Hughes red card
10 Nugent (Utaka 80)
27 Kanu (Kitson 72 yellow card)
04 Morrison yellow card
05 Miguel Vitor
10 King (N'Guessan 66)
11 Dyer (Moussa 90+1)
07 Gallagher (Wellens 79)
Ref: GrahamAtt: 8,327
Attempts on target
Attempts off target
90:00+4:56 The game is over, as the referee blows his whistle.
90:00+4:36 Carl Dickinson crosses the ball, Conrad Logan makes a comfortable save.
90:00+4:09 Steve Howard is caught offside. Indirect free kick taken by Jamie Ashdown.
90:00+2:53 The ball is delivered by Hayden Mullins, save by Conrad Logan.
90:00+0:24 Substitution Franck Moussa is brought on as a substitute for Lloyd Dyer.
90:00+0:24 Free kick awarded for a foul by Michael Brown on Yuki Abe. Richie Wellens takes the free kick.
88:50 Richie Wellens decides to take the corner short.
85:24 Carl Dickinson takes a shot. Comfortable save by Conrad Logan.
82:39 Booking Dave Kitson goes into the referee's book for unsporting behaviour.
82:28 Foul by Dave Kitson on Michael Lamey, free kick awarded. Michael Lamey takes the free kick.
81:33 The assist for the goal came from Joel Ward.
81:33 GOAL - Liam Lawrence:Portsmouth 1 - 2 Leicester Liam Lawrence gets on the score sheet with a goal from inside the box low into the middle of the goal. Portsmouth 1-2 Leicester.
81:14 Joel Ward takes a shot. Save by Conrad Logan.
79:28 Substitution David Nugent goes off and John Utaka comes on.
78:32 Substitution Richie Wellens comes on in place of Paul Gallagher.
78:17 Shot on goal by Dany N'Guessan from just inside the area clears the crossbar.
77:51 Liam Lawrence concedes a free kick for a foul on Yuki Abe. Michael Morrison takes the direct free kick.
77:13 Corner taken by Liam Lawrence played to the near post, Joao Moreno manages to make a clearance.
75:21 Corner taken by Liam Lawrence.
75:05 Liam Lawrence takes a shot. Save by Conrad Logan.
71:43 The assistant referee signals for offside against Steve Howard. Jamie Ashdown restarts play with the free kick.
71:43 Substitution Michael Brown replaces Matt Ritchie.
71:43 Substitution Dave Kitson comes on in place of Nwankwo Kanu.
70:00 Free kick awarded for an unfair challenge on Conrad Logan by Matt Ritchie. Direct free kick taken by Conrad Logan.
69:27 Free kick awarded for an unfair challenge on Carl Dickinson by Lloyd Dyer. Free kick taken by Liam Lawrence.
67:30 Joao Moreno fouled by Carl Dickinson, the ref awards a free kick. Conrad Logan restarts play with the free kick.
65:48 Substitution Dany N'Guessan on for Andy King.
65:08 Sent off Richard Hughes receives a red card for foul and abusive language.
62:45 The offside flag is raised against Liam Lawrence. Conrad Logan takes the indirect free kick.
59:56 Centre by Michael Lamey.
58:19 Free kick awarded for a foul by Liam Lawrence on Michael Lamey. Conrad Logan takes the free kick.
55:22 Free kick awarded for a foul by Ibrahima Sonko on Steve Howard. Paul Gallagher has an effort direct from the free kick, save
made by Jamie Ashdown.
54:40 Joel Ward takes a shot from just inside the penalty box which clears the bar.
54:19 David Nugent takes a shot. Save by Conrad Logan.
53:12 Joao Moreno fouled by Ibrahima Sonko, the ref awards a free kick. Conrad Logan takes the direct free kick.
52:46 Booking Michael Morrison is booked.
52:25 Michael Morrison challenges David Nugent unfairly and gives away a free kick. Liam Lawrence takes the free kick.
48:55 Liam Lawrence delivers the ball.
48:16 Inswinging corner taken from the left by-line by Liam Lawrence, Steve Howard makes a clearance.
47:20 Ibrahima Sonko fouled by Steve Howard, the ref awards a free kick. Direct free kick taken by Richard Hughes.
46:18 Joel Ward produces a cross, save by Conrad Logan.
45:21 The referee blows for offside. Conrad Logan takes the free kick.
45:01 The second half begins.
45:00+1:22 The ref blows to end the first period.
45:00+0:57 Corner taken right-footed by Liam Lawrence from the left by-line, clearance by Michael Morrison.
45:00+0:44 David Nugent takes a shot. Save by Conrad Logan.
45:00+0:06 Headed effort on goal by Nwankwo Kanu from inside the penalty box misses to the right of the target.
43:40 Free kick awarded for a foul by Richard Hughes on Joao Moreno. Direct free kick taken by Michael Morrison.
42:09 Assist on the goal came from Andy King.
42:09 GOAL - Lloyd Dyer:Portsmouth 0 - 2 Leicester Lloyd Dyer scores a goal from the edge of the area to the bottom left corner of the goal. Portsmouth 0-2 Leicester.
41:29 Paul Gallagher delivers the ball, save by Jamie Ashdown.
39:14 A cross is delivered by Tom Kennedy.
37:20 Corner taken by Liam Lawrence from the left by-line, Header by Ibrahima Sonko from deep inside the penalty area misses to
the right of the target.
33:29 Steve Howard is ruled offside. Ibrahima Sonko restarts play with the free kick.
33:10 David Nugent produces a cross, Tom Kennedy manages to make a clearance.
31:43 Joao Moreno has an effort at goal from 35+ yards. Jamie Ashdown makes a save.
31:19 Unfair challenge on Joao Moreno by Liam Lawrence results in a free kick. Tom Kennedy takes the direct free kick.
29:34 Liam Lawrence takes a shot. Save by Conrad Logan.
29:09 Free kick awarded for an unfair challenge on Liam Lawrence by Paul Gallagher. Free kick taken by Liam Lawrence.
28:41 Paul Gallagher handles the ball and concedes a free kick. Jamie Ashdown restarts play with the free kick.
27:32 Free kick awarded for an unfair challenge on Michael Lamey by Carl Dickinson. Conrad Logan takes the free kick.
25:13 Effort on goal by Matt Ritchie from just inside the penalty box goes harmlessly over the target.
24:37 Free kick awarded for an unfair challenge on David Nugent by Michael Morrison. Direct free kick taken by Liam Lawrence.
22:39 Paul Gallagher takes a shot.
21:17 The ball is sent over by Paul Gallagher.
20:48 Aaron Mokoena gives away a free kick for an unfair challenge on Steve Howard. Direct free kick taken by Michael Morrison.
17:31 Inswinging corner taken right-footed by Liam Lawrence, Ibrahima Sonko takes a shot. Tom Kennedy gets a block in.
14:32 Foul by Joao Moreno on Hayden Mullins, free kick awarded. Richard Hughes restarts play with the free kick.
12:56 Liam Lawrence takes a shot. Save by Conrad Logan.
11:09 David Nugent is caught offside. Free kick taken by Conrad Logan.
9:02 Steve Howard produces a left-footed shot from the edge of the box and misses to the left of the target.
7:36 Foul by Steve Howard on Nwankwo Kanu, free kick awarded. Aaron Mokoena takes the direct free kick.
5:39 Steve Howard has a headed effort at goal from deep inside the area missing to the left of the target.
5:14 Foul by Richard Hughes on Lloyd Dyer, free kick awarded. Direct free kick taken by Lloyd Dyer.
3:50 Effort on goal by Nwankwo Kanu from inside the box misses to the right of the target.
2:03 Lloyd Dyer provided the assist for the goal.
2:03 GOAL - Michael Morrison:Portsmouth 0 - 1 Leicester Michael Morrison gets on the score sheet with a goal from close in high into the middle of the goal. Portsmouth 0-1 Leicester.
1:50 Lloyd Dyer takes a shot. Jamie Ashdown makes a save.
1:15 Inswinging corner taken right-footed by Paul Gallagher from the left by-line, Jamie Ashdown makes a save.
1:01 Shot from 12 yards by Lloyd Dyer. Ibrahima Sonko gets a block in.
0:00 The ref blows the whistle to begin the match.
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