Nketiah takes the ball into the corner to take time off the clock.
120'
Hoolahan lifts a dangerous cross into the box from the right flank and Macey comes for the ball and misses it completely. However, fortune is on his side as the ball loops back up into his hands.
There will be one minute of added time.
119'
WIDE! Nketiah goes for the hat-trick with a left-footed strike from distance, but his effort just bends around the post.
118'
Trybull is feeling the effects of the action as he cramps up in the middle of the park. Norwich are down to 10 men as he tries to get back to his feet.
116'
OVER! Nketiah raids forward before sliding the ball back to Willock. The forward wants the ball back in the right inside channel, but Willock goes for goal, only to blast his effort over the bar.
114'
J. Willock enters the game and replaces J. Wilshere.
Willock replaces Wilshere for the home side.
PENALTY SHOUT! Husband goes down in the box under Debuchy's challenge as he goes on the surge towards the byline. Norwich are adamant that it's a spot-kick, but the referee dismisses their appeal. That was an excellent shout and the Canaries can feel hard done by there.
113'
Debuchy has to act at the back to steer Oliveira's blast from the right inside channel behind for a corner. Jerome was lurking behind so he had to clear his lines there.
112'
SAVE! Nketiah is denied a hat-trick by Gunn as the forward bursts into the box, but the keeper palms his blast from the right inside channel away to safety.
110'
Pinto makes a surge down the right flank displaying tireless legs, but his cross to the near post is cut out by Holding.
Minute
Description
109'
The Gunners are searching for the knockout blow here, but Norwich are holding firm for now. As long as the deficit remains one goal, the Canaries still have hope.
108'
Arsenal take the corner short and Wilshere sends the ball back to Elneny, but he strikes the ball straight at Gunn.
107'
Akpom releases Dasilva down the left, but Zimmermann cuts out the the cross at the near post, sending the ball behind for a corner.
106'
We're back underway in extra-time.
105' +2
Wildschut and Hoolahan combine in the final third before Oliveira goes for the strike from distance, but he blazes his strike over the bar.
105'
J. Dasilva enters the game and replaces A. Iwobi.
Dasilva replaces Iwobi for the home side.
There will be two minutes of added time.
104'
Norwich are not providing the threat they did during the second half of the contest. Tired legs are affecting their performance as the game drags on.
102'
CHANCE! Giroud has the opportunity to kill off the game as he latches on to a cross from the left, but he cannot turn the ball past Gunn at close range.
101'
C. Jerome enters the game and replaces H. Reed.
Jerome replaces Reed for the Canaries.
100'
Trybull gets away with one as he catches Coquelin late, but the referee shows mercy by not handing him his second booking.
99'
Gunn is forced into a hurried clearance as Husband's backpass almost allows Nketiah to pounce in the box. Tired legs are beginning to take hold of the visitors.
96'
E. Nketiah has scored a goal for Arsenal! Assist by Mohamed Elneny.
Elneny swings the corner into the box and Nketiah rises to head home.
GOALLLLLLLL!!!!!! NKETIAH HAS HIS SECOND! The forward rises highest in the box to head Elneny's corner at goal and his effort hits the back of the net, leaving Gunn with no chance. What an impact he has made from the bench.
95'
Nketiah makes a neat turn in the box, but he as goes to shoot, he gets crowded out in the box.
SAVE! Gunn makes a fine save to deny Walcott as a deflection fell kindly for him in the box, but the keeper made a fine reaction save to turn the ball past the post.
94'
BLOCK! Husband drives the ball into the box and his strike is deflected into the path of Trybull. He attempts to shoot on the half-volley, only for Holding to block his effort.
93'
Oliveira surges into the final third and is able to buy a corner off the legs of Debuchy.
91'
We're underway once again at the Emirates.
90' +5
Walcott wastes the last opening of normal time as he blazes his strike well over the bar from distance.
90' +3
WIDE! Wilshere slides the ball into the feet of Akpom, but he scuffs his strike well wide of the post.
90' +2
W. Hoolahan enters the game and replaces J. Maddison.
Y. Wildschut enters the game and replaces M. Vrančić.
Maddison makes way for Hoolahan.
Vrancic makes way for Wildschut.
90' +1
BLOCK! Giroud strikes the ball, but his effort clips off the top of the wall and is cleared by the visitors.
90'
J. Husband gets yellow.
SAVE! Iwobi and Nketiah combine to tee up Wilshere in the box, but Gunn makes a fine reaction stop to keep the ball out.
There will be four minutes of added time.
Husband brings down Walcott right on the edge of the box and Giroud will have the chance to strike at the net.
Yellow card James Husband
89'
T. Trybull gets yellow.
Trybull wipes out Wilshere and goes into the book.
88'
C. Akpom gets yellow.
Akpom catches Zimmermann late and goes into the book.
85'
E. Nketiah enters the game and replaces R. Nelson.
E. Nketiah has scored a goal for Arsenal! Assist by F. Coquelin.
Zimmermann stands up to the challenge of Giroud, forcing the ball out for a corner as the Frenchman tried to turn him on the edge of the box.
Nketiah replaces Nelson for the home side.
Coquelin beats his man at the near post to flick the ball into the box and Nketiah capitalises to score.
GOALLLLLLL!!!!!!! NKETIAH SCORES WITH HIS FIRST TOUCH! Seconds after emerging from the bench the 18-year-old scores the equaliser as he pounces from close range. Walcott's corner was flicked on by Coquelin at the near post and Nketiah reacted first in the six-yard box to slide the ball into the net. What a moment for Nketiah.
83'
Wilshere lifts the ball into the box from the resulting corner, but Holding can only guide his effort over the bar.
82'
Arsenal break with pace down the right and Walcott fires a low cross towards the near post, but Husband is there to divert the ball behind.
80'
OVER! Akpom sends the ball back into the box from the left and Zimmermann gets a flick on it, but not enough to clear Walcott. He heads towards the net, but guides the ball narrowly over the bar.
79'
Wilshere creates space on the left flank to dig out a cross to the back post, but it just goes over the heads of Giroud and Walcott at the back post.
78'
J. Wilshere gets yellow.
Wilshere catches Husband late on the left flank and he goes into the book.
77'
Iwobi tries to create space for a strike on the edge of the box and he does fire at goal, but Reed deflects his effort well wide of the post.
75'
WIDE! Walcott takes a corner short to Wilshere, who knocks the ball back to the forward to strike from the edge of the box. He gets the power, but not the direction needed as the ball drifts past the post.
74'
MISS! Norwich have another glorious opening to notch a second goal as Oliveira releases Vrancic into the box. He does brilliantly to fake the strike and cut the ball back on to his left foot. However, with the goal gaping he smashes his strike wide of the post.
73'
M. Stiepermann enters the game and replaces J. Murphy.
Murphy makes way for Stiepermann.
72'
CHANCE! Murphy has a great chance to double his side's lead as Vrancic sends the ball over the top of the Arsenal defence. Murphy goes for the first-time strike from the edge of the box, but he lifts his effort over the bar.
70'
C. Akpom enters the game and replaces A. Maitland-Niles.
Akpom replaces Maitland-Niles for the home side.
OVER! Oliveira and Pinto combine brilliantly down the right as the forward sends the full-back into the box. He cuts the ball back towards his compatriot, but the striker fires his effort over the bar.
69'
Murphy makes another good run down the left flank and he fires a low cross towards the near post, but Macey comes off his line to gather. The Canaries needed a runner at the near post there, but there was not one forthcoming.
68'
F. Coquelin gets yellow.
Coquelin goes in late on Maddison and after initially looking like getting away without a caution, the referee calls him back to be booked.
67'
Arsenal probe down the left, but Coquelin loses possession and it allows the Canaries to clear the danger. Husband, Murphy and Maddison did extremely well there for the visitors.
65'
Arsenal build down the right, but once again Walcott moves a fraction too soon and is caught offside.
63'
The midfielder is ok to continue as the game restarts.
62'
Maitland-Niles goes down in the final third and requires treatment before we can continue.
60'
BLOCK! Giroud turns his man in the box and works the ball back to Iwobi on the edge of the box. He goes for the strike with power, but Klose is there to make the block. He didn't know much about it, but was in the right place at the right time.
58'
Murphy raids down the left flank and he surges towards the byline. Oliveira is in support in the box and he tries to find him by blasting the ball across the face of goal, but Macey punches the ball away.
57'
CHANCE! Pinto lifts a dangerous cross to the back post and Murphy raids forward to head at goal, but he can only guide his effort straight at Macey.
56'
Mohamed Elneny gets yellow.
Elneny is extremely fortunate to remain on the pitch as he clips the legs of Oliveira as he raids through on goal. He makes no attempt to play the ball, but the referee only books the defender.
55'
Nelson has space down the right flank and he tries to lift the ball into the box, but he sends his cross well over the bar.
53'
The Gunners move the ball into a threatening area of the pitch, but the quality again for the final ball is lacking. Frustration is beginning to build for the Gunners.
51'
Arsenal break into the box through Iwobi, but after his offload to Wilshere - the midfielder fails to register an effort at goal, allowing Zimmermann to clear the danger.
Maddison surges past Debuchy and breaks into the box. He slides the ball to Oliveira to strike, but he passes up the opportunity to shoot from inside the area.
49'
Iwobi is lucky to escape a booking as he throws Reed to the ground as he tries to take a free-kick quickly.
48'
WIDE! Iwobi bursts into the right inside channel and goes for the strike, but he pulls his effort well wide of the target. Arsenal have to improve their quality in the final third.
47'
Maitland-Niles and Iwobi attempt to combine in the final third, but the final pass goes astray and allows the visitors to clear the danger.
46'
We're back underway at the Emirates.
45' +1
The referee ends the first half.
45'
Nelson ups the ante for the Gunners as he breakks into the box, but his low cross is diverted behind for a corner by Reed.
SAVE! Zimmermann heads away from Wilshere's corner from the right, but Walcott collects and goes for the strike. However, his curling effort is well saved by Gunn.
There will be one minute of added time.
44'
Klose rises highest in the box to head clear from the first delivery in from Maitland-Niles. Nelson collects on the right flank and lifts the ball to the back post, but Gunn claims with ease.
43'
Giroud finds space down the left and he sends a cross into the box, but Klose is well positioned to head behind for a corner.
42'
SAVE! Walcott capitalises on a mistake from Klose at the back and he raids forward to the edge of the box, but his low strike is well saved by Gunn.
41'
Arsenal win a free-kick, but the cross is cleared with ease by the Canaries. The visitors break down the left, but the final pass from Husband is delayed and Oliveira is caught offside.
39'
SAVE! Norwich break forward down the left and Murphy and Husband combine to find Oliveira in the box. He creates half-a-yard to strike at goal, but Macey does well to get down to his left to make the stop. A vital save from Arsenal keeper.
38'
Maddison seizes on a loose ball in the Arsenal half and plays in Murphy. He looks for the offload to Oliveira in the final third, but Debuchy makes an important interception.
37'
Norwich are growing in confidence and are starting to put the Gunners under pressure at the back.
34'
J. Murphy has scored a goal for Norwich City! Assist by J. Maddison.
Maddison plays a sublime throughball forward for Murphy to finish.
GOALLLLLLLLLLL!!!!!! NORWICH TAKE THE LEAD! Out of nothing the Canaries strike as Murphy breaks away and lifts the ball over Macey into the net. Trybull won possession for the visitors in the middle of the park before Maddison released the forward with a first-time throughball. Murphy held his composure and chipped the ball over the Arsenal keeper into the net.
33'
SAVE! Maitland-Niles collects the ball on the edge of the box and goes for a low drive at goal, but Gunn gets down to make the stop.
32'
Walcott attempts to break behind the Norwich backline to latch on to Debuchy's ball over the top, but he moves a fraction too early and is caught offside.
31'
Norwich are well drilled at the back and Arsenal's frustrations continue as Elneny sends his cross behind for a goal-kick. The Gunners are seeing plenty of the ball, but are lacking the quality in the final third.
30'
An awkward one for Macey as he has to gather Elneny's looping header under his bar, but he makes the claim after colliding with his post.
28'
Reed continues his strong start to the game as he disrupts Wilshere's lofted pass before dispossessing the midfielder.
27'
Giroud tries to get the better of Klose in the final third, but he can send his effort over the bar from distance.
25'
Pinto sends the ball over the top of the Arsenal defence for Oliveira to chase, but Macey gets there ahead of the forward to gather inside his box.
24'
The Gunners are starting to ramp up the pressure and have the visitors encamped in their own half. Can the Gunners find the breakthrough to make their pressure tell?
22'
Wilshere sends the ball into the box, and Giroud goes down as he tries to make contact. However, the referee waves play on and Reed clears for the Canaries.
21'
Oliveira brings down Coquelin on the right flank and it will give the Gunners another chance to send a cross into the box.
20'
SAVE! Maitland-Niles sends the ball in from the left flank and Holding rises highest in the box to power a header at goal from close range, but Gunn produces an excellent reaction stop to deny the defender.
19'
OVER! Elneny collects on the half-way line and moves forward to strike the ball from 35 yards. He gets power on his effort and it sails over the bar, although it takes a deflection on its way.
18'
Murphy turns the ball around the corner and plays Vrancic into acres of space through the middle. The midfielder has the opportunity to offload to Maddison to his right, but he goes alone and fires his effort wide of the post.
15'
Maitland-Niles gets the better of Pinto once again down the left flank and has space to cut the ball back, only to send it straight to Husband, who boots the ball away. Arsenal are beginning to open up the Canaries down the flank.
14'
OVER! Maitland-Niles makes a good run down the left flank and is able to take his side into the box for the first time in the contest. He combines with Giroud, but Zimmermann is able to clear the ball to the edge of the box. Iwobi seizes possession and goes for the strike, but sends his effort over the bar.
13'
Vrancic raids down the right flank and hits an early cross, but there are no yellow shirts on the charge in the box, allowing Macey to gather.
11'
Iwobi tries to find space down the right flank, but Husband keeps him at bay, forcing a mistake from the forward.
10'
Walcott goes on the surge into the box, but he gets crowded out before he can fire at goal.
9'
Arsenal haven't settled into a rhythm as of yet and the visitors are well organised at the back, keeping them away from the edge of the box.
7'
Reed sends the ball in behind the Arsenal backline, but Murphy fails to take the ball in stride and scuffs his eventual effort at goal from the left inside channel. A decent opening for Farke's men.
6'
Murphy goes on the surge down the left and wins a corner for the Canaries. The resulting delivering causes problems, but the home side manage to hack the ball away from the box.
5'
Wilshere sends a ball into the box from the right flank. And although he gets good height on the ball, Giroud's header is deflected into the hands of Gunn.
4'
Arsenal probe on the edge of the Norwich box, but they lose possession and Coquelin brings down Trybull as he tries to bring the Canaries out of their own half.
3'
A slow start to the game as the Gunners attempt to build a rhythm from the back.
1'
We're underway at the Emirates Stadium.
FLASHBACK! Arsenal defeated Norwich 1-0 in their last encounter in the Premier League at the Emirates Stadium in April 2016, with Danny Welbeck scoring the only goal of the game.
Farke has kept the majority of his side intact from the win over Ipswich on Sunday, although his options are limited given Marley Watkins' suspension. Nelson Oliveira, James Husband, Mario Vrancic and Josh Murphy come into the fold this evening.
Arsenal have reverted back to the side that defeated Red Star Belgrade given that they played Everton on Sunday. Matt Macey comes into the fold between the sticks as Petr Cech is rested, while Alex Iwobi replaces Joseph Willock in the only other change from the side. Jack Wilshere drops back into the heart of midfield, while Iwobi starts as part of a three-man attack alongside Theo Walcott and Olivier Giroud.
The team news has been announced and we'll start with the home side.
Norwich secured a massive win over bitter rivals Ipswich in the East Anglia derby at the weekend. James Maddison scored the only goal of the game at Portman Road to extend the Canaries' unbeaten record in nine matches in all competitions. Daniel Farke's men have beaten Swindon, Charlton and Brentford thus far in the tourament, putting three goals past the Bees in the last round.
Arsenal come into the contest off the back of a confident performance against Everton, demolishing the Toffees by a 5-2 scoreline on the road. The Gunners have bounced back well from their defeat at the hands of Watford two weeks ago, with back-to-back wins. Now Arsene Wenger will be keen for his side to advance to the next round of the League Cup, having defeated Doncaster Rovers last time out.
Good evening and welcome to the live commentary of the League Cup clash between Arsenal and Norwich City at the Emirates Stadium.
STAT ATTACK! Arsenal have lost just two of their last 27 home games in all competitions against Norwich, winning 17 of the contests and drawing eight. They're unbeaten in their last eight matches against the Canaries, winning three out of their last four matches at the Emirates.
The players are out on the pitch, so we should be underway shortly.
HALF-TIME: ARSENAL 0-1 NORWICH
Norwich are 45 minutes away from a famous victory over Arsenal in the League Cup. The Canaries have been resolute at the back and were deadly on the break as Josh Murphy put them ahead in the 34th minute. The Gunners have not been at their best and Arsene Wenger will be demanding an improvement in the second half.
The players are back out on the pitch, so we should be underway again shortly.
FULL-TIME: ARSENAL 2-1 NORWICH
Thanks for joining our commentary this evening. Until next time, goodbye.
Arsenal are indebted to a brace from 18-year-old Edward Nketiah to save them from crashing out of the League Cup. The Gunners were five minutes away from exiting the competition as Josh Murphy's strike looked to have put Norwich on the path to the quarter-finals. However, the forward scored with his first touch off the bench before notching a second goal in extra-time to guide his side through to the next round.
END OF 90 MINUTES: ARSENAL 1-1 NORWICH
Eddie Nketiah bails out Arsenal with his first goal for the club, scoring seconds after emerging from the bench. Norwich thought they were on the path to victory after Josh Murphy put them ahead in the first half, but they failed to take any of their glorious openings in the second half and were duly punished.
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