OFFSIDE! Iwobi looks to add the icing on top of the cake and tucks home from inside the box but the offside flag is raised.
90' +3
A. Lacazette has scored a goal for Arsenal!
GOAL! 3-1 Arsenal! There will be no late comeback from Brentford as Lacazette is rewarded for his determination, using his strength to beat two defenders in the air before pushing through on goal and tucking home beyond Daniels.
Torreira is attributed with the assist but the goal really came from nothing and Brentford will certainly be disappointed.
90' +1
The fourth official signals four minutes of additional time.
89'
Sawyers appeals for a foul right on the edge of the box after being sandwiched between Lichtsteiner and Torreira but Mike Dean waves away the protests.
87'
WIDE! Arsenal have a glorious opportunity to put the game beyond doubt as both Ramsey and Lacazette burst through, with the former teeing the ball across for the France international but he fails to hit the target.
86'
Brentford have lost their sting in the past five minutes or so but Arsenal continue to offer very little when they do get forward, with Lacazette still isolated and Welbeck very quiet despite chasing a hat-trick.
84'
A. Ramsey enters the game and replaces Mohamed Elneny.
Emery's final change is the introduction of another midfielder, with Ramsey replacing Elneny.
83'
Arsenal have usually struggled in the first-half of matches this season before improving after the break but it has been the opposite here. The Gunners were cruising prior to the interval and have not hit their stride since the restart.
81'
Guendouzi is now on corner duty for Arsenal but he overhits his cross, which is just about kept in on the opposite side before Brentford steal possession.
Minute
Description
79'
S. Benrahma enters the game and replaces O. Watkins.
Lacazette has seen very little of the ball since his introduction, which is evidence of how much pressure Arsenal find themselves under in the latter stages of the game.
Third and final change for Brentford, who introduce Benrahma for Watkins.
77'
SAVE! Leno called into action to save another effort from distance as Judge fires at goal again.
75'
L. Torreira enters the game and replaces H. Mkhitaryan.
Arsenal follow with a change of their own and the introduction of Torreira, who replaces Mkhitaryan, will bolster the midfield.
74'
N. Maupay enters the game and replaces Sergi Canós.
A second change for Brentford, who introduce Maupay for Canos.
72'
The resulting corner comes to nothing but Arsenal soon get the ball again as they try to build an attack from the back.
71'
SAVE! Arsenal win a corner which Mkhitaryan fires into the middle and is met by the head of Monreal but the attempt is punched over the bar by Daniels.
70'
Brentford continue to put Arsenal under consistent pressure and the hosts are struggling to clear their lines. It has been a very scrappy second-half performance from the Gunners.
66'
SAVE! Judge is proving to be the main threat for Brentford as he drills a low shot from the edge of the area but Leno gets down well to make the save.
64'
H. Dalsgaard enters the game and replaces M. Odubajo.
A. Lacazette enters the game and replaces E. Smith Rowe.
Brentford also make a change and it is at right-back, where Dalsgaard replaces Odubajo.
Emery calls for Arsenal's first change of the match, replacing teenager Smith-Rowe with Lacazette.
63'
D. Welbeck gets yellow.
Arsenal have suddenly see the tempo of the game switch significantly and the hosts now find themselves on the back foot, with Brentford controlling the tempo at the moment.
Welbeck is penalised for a foul on Odubajo after lunging in with what is the definition of a striker's challenge.
61'
The visitors have the wind in their sails and win a succession of corners, the second of which is headed away by Guendouzi at the near post.
59'
OVER! Brentford immediately put Arsenal on the back foot again and Canos shifts the ball into a shooting position before firing an effort over the top of Leno's crossbar.
58'
A. Judge has scored a goal for Brentford!
GOAL! 2-1! Guendouzi bundles Odubajo over on the edge of the box and concedes a free-kick in a dangerous position and Judge superbly curls the set-piece over the wall and beyond the reach of Leno.
56'
Watkins finds space to run into but his charge is brought to a close by superb defensive work from Holding, who quickly quells the danger.
54'
A very lively start from Arsenal and Brentford have also provided evidence that they can be a threat when they push forward but Leno is still yet to make a save.
52'
WIDE! A rare chance for Brentford at the other end sees Canos try to beat Leno from just outside the box bobble wide of the post.
50'
OVER! Iwobi strikes from distance and sees his effort whistle over the top of Daniels' net.
48'
SAVE! The resulting corner sees Arsenal fire the ball to the edge of the box before being lofted into the area by Lichtsteiner where Mkhitaryan takes a touch and tries to smash home but Daniels prevents a third goal.
47'
CHANCE! Iwobi makes room down the left after latching onto Monreal's pass and drills a cross towards Welbeck in the middle but Jeanvier clears away for a corner.
46'
Brentford get the second half at the Emirates Stadium underway.
45' +4
HALF-TIME: ARSENAL 2-0 BRENTFORD
45' +2
Mkhitaryan finds room on the left and cuts back inside before drilling a cross into a packed penalty area but no Arsenal players are able to poke the ball home.
45'
The referee has signalled four minutes of additional time.
43'
Brentford will be desperate to ensure they do not fall further behind before the interval as they still have a chance of a turnaround if they keep the margin at two.
41'
Arsenal have looked shaky at times when on the ball defensively but Brentford are still yet to test Leno, though he is seeing a lot of the ball as the hosts look to play out from the back at every opportunity.
39'
Brentford now have a huge task ahead of them and there is danger that the floodgates could open, as Arsenal show no signs of easing the pressure.
37'
D. Welbeck has scored a goal for Arsenal! Assist by Nacho Monreal.
E. Konsa gets yellow.
Konsa clatters into Lichtsteiner, who was looking to hit on the counter, and earns a yellow card.
GOAL! 2-0 Arsenal! The Gunners burst forward in numbers and Iwobi feeds a ball to Monreal, who tees a pass back across the area to Welbeck who taps home his second goal of the night.
Emery has been taking notes from the Wenger book of coaching! A brilliant counter-attack from Arsenal and superb attacking support from Monreal, giving Welbeck an easy finish.
36'
Sloppy play from Guendouzi allows Brentford to threaten Leno's net and the visitors win a corner. Judge floats a cross to the edge of the box but Arsenal get the ball away.
34'
Short break in play as Jeanvier receives treatment but the Brentford man is able to continue.
32'
The tempo of the game has dipped in the past few minutes, as Arsenal have taken their foot off the gas while Brentford are still struggling to establish themselves in the match.
30'
Welbeck bursts through the defence to latch onto Mustafi's long ball forward but the offside flag is raised.
28'
S. Lichtsteiner gets yellow.
Lichtsteiner is the first player to be booked after holding Canos on the byline to prevent his charge down the wing.
24'
Arsenal win another corner and Mkhitaryan goes direct with a cross into the middle but the Brentford defence heads away. Iwobi then tries to curl in an effort from distance but his attempt bounces wide of the post without causing any problems.
22'
Welbeck is looking lively but he is being close attention from Brentford's defence, who are closing him down quickly.
20'
Iwobi steals the ball of the Brentford defence and skips into the box to try room to shoot but stumbles under pressure. There is half-hearted appeals for a penalty but Mike Dean is not interested.
18'
Emery's side may have the lead but they are still not quite hitting their stride in their attacking moves and the home supporters will be expecting more.
16'
Brentford cannot quite get going in their attempts to put the Arsenal defence under pressure and the majority of the play at the moment is coming in the midfield areas.
14'
Arsenal will know there is still work to do as Manchester United took an early lead against Derby yesterday before being knocked out so Emery's side cannot afford any slip ups.
12'
Brentford are struggling to clear their lines at the moment and Arsenal continue to put the Championship side under a significant amount of pressure.
10'
The Gunners are knocking the ball around with ease and are trying to find room to work with but Welbeck is flagged offside, bringing an end to the latest attacking move.
8'
Arsenal look to be in the mood and the pace provided by the likes of Iwobi and Smith-Rowe has already proven to be dangerous. The visiting defence is clearly set for a difficult task.
6'
WIDE! Smith-Rowe bursts forward into space and charges into the area after latching onto a long ball but sees his block deflected behind for a corner, which Brentford clear away.
5'
D. Welbeck has scored a goal for Arsenal! Assist by M. Guendouzi.
Guendouzi has impressed throughout the season so far and his delivery to Welbeck was pinpoint, putting the ball on a plate for the England international.
GOAL! 1-0 Arsenal! Mkhitaryan goes short from the corner towards Guendouzi, who curls an inviting cross into the middle where Welbeck rises above the defence to head home.
4'
Iwobi wins Arsenal a corner, as the Gunners look to get off to a flying start.
2'
An early mistake from Leno sees the ball roll under his studs and hands Brentford a corner but the Gunners defence stands firm to get the ball away.
1'
We are underway at the Emirates Stadium, where the hosts get the action started.
Hello and welcome to our LIVE commentary of the EFL Cup clash between Arsenal and Brentford, where the hosts are looking to secure their sixth consecutive win in all competitions.
Brentford travel to the Emirates Stadium on the back of two games without a win, which includes a 3-1 defeat to Derby County at the weekend. Sat seventh in the Championship, the promotion hopefuls could cause the Gunners a problem in this match.
Arsenal XI (4-2-3-1): Bernd Leno; Stephan Lichtsteiner, Shkodran Mustafi, Rob Holding, Nacho Monreal; Matteo Guendouzi, Mohamed Elneny; Henrikh Mkhitaryan, Emile Smith-Rowe, Alex Iwobi; Danny Welbeck.
Brentford XI (4-4-2): Luke Daniels; Moses Odubajo, Sergi Canos, Nico Yennaris, Ollie Watkins; Kamohelo Mokotjo, Alan Judge, Romaine Sawyers, Julian Jeanvier; Ezri Konsa Ngoyo, Yoann Barbet.
The Gunners look to have found their rhythm under Unai Emery and enter the match enjoying a five-match winning streak in all competitions. The clash with Brentford is Arsenal's third in a sequence of four matches at the Emirates Stadium, which has helped the North London outfit build momentum.
Arsenal subs: Emiliano Martinez, Sead Kolasinac, Eddie Nketiah, Alexandre Lacazette, Aaron Ramsey, Lucas Torreira, Hector Bellerin.
Brentford subs: Daniel Bentley, Said Benrahma, Lewis MacLeod, Henrik Dalsgaard, Chris Mepham, Neal Maupay, Josh McEachran.
Emery makes wholesale changes to the Arsenal side that defeated Everton on Sunday as just Monreal and Mustafi retain their spots. Teenage sensation Smith-Rowe earns a first competitive start for the Gunners, who name a very strong squad.
Brentford also make a number of changes as only Sawyers, Watkins, Jeanvier and Barbet retain their spot in Dean Smith's XI from the team that lost to Derby. Yennaris, formerly of Arsenal, skippers the Bees against his old side.
The two teams are entering the field and the match is just a few minutes away from beginning.
A superb first-half performance from Arsenal, who were quick out of the blocks and have eased their way into a two-goal lead. The Gunners front three looks in the mood and Brentford have not managed to find their rhythm in the game, which threatens to drift away from them if they do not improve after the break.
Emery may look to make changes shortly after the break but Welbeck will fancy his chances of getting a hat-trick before potentially making way. Brentford, meanwhile, already look like they would benefit from fresh faces as the players on the pitch have not taken the opportunity handed to them by Smith.
Arsenal now boast six consecutive wins in all competitions and will look to extend that run against Watford on Saturday, before learning their EFL Cup fate later on the same day. Brentford, meanwhile, are now winless in three and will look to bounce back when they host Reading.
Thanks for joining our coverage today. Until next time, goodbye.
Not the easiest of games for Arsenal but Emery's side put their name in the hat for Saturday's EFL Cup fourth round draw after a 3-1 victory over Brentford. The Championship side gave the Gunners a stern test in the second period but could not fight back after Welbeck's first-half brace and Lacazette's late effort put the game beyond any doubt.
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