SUBSTITUTION: Zanka COMES ON FOR Saman Ghoddos
SUBSTITUTION: Keane Lewis-Potter COMES ON FOR Frank Onyeka
SUBSTITUTION: Jorginho COMES ON FOR Martin Ødegaard
SUBSTITUTION: Ben White COMES ON FOR Bukayo Saka
Takehiro Tomiyasu - Arsenal - won a free kick in defence.
Substitution - Brentford. Zanka for Saman Ghoddos.
Substitution - Brentford. Keane Lewis-Potter for Frank Onyeka.
Fouled by Kristoffer Ajer - Brentford
Goal! Brentford 0, Arsenal 1. Kai Havertz - Arsenal - header inside of six yard box - left side to the left corner. Assist - Bukayo Saka with a cross.
Shot blocked. Takehiro Tomiyasu - Arsenal - shot with right foot from the centre of the box is blocked.
New attacking attempt. Eddie Nketiah - Arsenal - shot with right foot from the left side of the box is saved by goalkeeper in the centre of the goal. Assist - Bukayo Saka.
Missed chance. William Saliba - Arsenal - shot with right foot from outside the box is close, but missed.
Mark Flekken - Brentford - won a free kick in defence.
Fouled by Takehiro Tomiyasu - Arsenal
Shot blocked. Declan Rice - Arsenal - shot with right foot from outside the box is blocked. Assist - Leandro Trossard.
Corner - Arsenal. Conceded by Frank Onyeka.
SUBSTITUTION: Kai Havertz COMES ON FOR Gabriel Martinelli
Substitution - Arsenal. Kai Havertz for Gabriel Martinelli.
Fouled by Shandon Baptiste - Brentford
Declan Rice - Arsenal - won a free kick on the right wing.
Shot blocked. Neal Maupay - Brentford - shot with the head from the centre of the box is blocked. Assist - Bryan Mbeumo.
Shot blocked. Kristoffer Ajer - Brentford - shot with left foot from the centre of the box is blocked. Assist - Bryan Mbeumo.
Missed chance. Neal Maupay - Brentford - shot with left foot inside of six yard box - left side missed to the left. Assist - Vitaly Janelt.
Takehiro Tomiyasu - Arsenal - won a free kick in defence.
Fouled by Neal Maupay - Brentford
Shot blocked. Oleksandr Zinchenko - Arsenal - shot with left foot from outside the box is blocked. Assist - Declan Rice.
Corner - Arsenal. Conceded by Frank Onyeka.
SUBSTITUTION: Shandon Baptiste COMES ON FOR Yegor Yarmolyuk
SUBSTITUTION: Neal Maupay COMES ON FOR Yoane Wissa
Substitution - Brentford. Shandon Baptiste for Yehor Yarmoliuk.
Substitution - Brentford. Neal Maupay for Yoane Wissa.
New attacking attempt. Yehor Yarmoliuk - Brentford - shot with right foot from outside the box is saved in the top left corner. Assist - Saman Ghoddos.
Corner - Arsenal. Conceded by Ben Mee.
SUBSTITUTION: Eddie Nketiah COMES ON FOR Gabriel Jesus
Substitution - Arsenal. Eddie Nketiah for Gabriel Jesus.
Offside - Arsenal. Takehiro Tomiyasu with a pass, however Martin Ødegaard is in offside.
BOOKING: Gabriel Martinelli
Gabriel Martinelli - Arsenal - receive yellow card for a foul.
Frank Onyeka - Brentford - won a free kick in defence.
Fouled by Gabriel Martinelli - Arsenal
Corner - Arsenal. Conceded by Ben Mee.
Missed chance. Bryan Mbeumo - Brentford - shot with left foot from the right side of the box missed. Assist - Yoane Wissa.
Kristoffer Ajer - Brentford - won a free kick in defence.
Fouled by Gabriel Martinelli - Arsenal
Missed chance. Saman Ghoddos - Brentford - shot with right foot from the centre of the box is close, but missed. Assist - Ben Mee with a head.
Second Half starts Brentford 0, Arsenal 0.
Missed chance. Martin Ødegaard - Arsenal - shot with left foot from the centre of the box missed.
Kristoffer Ajer - Brentford - receive yellow card.
Gabriel Jesus - Arsenal - won a free kick on the left wing.
Fouled by Kristoffer Ajer - Brentford
First Half ended - Brentford 0, Arsenal 0.
VAR Decision: No Goal Brentford 0-0 Arsenal.
Offside - Arsenal. Gabriel Jesus with a pass, however Leandro Trossard is in offside.
New attacking attempt. Gabriel Jesus - Arsenal - shot with the head from the centre of the box is saved in the top centre of the goal. Assist - Bukayo Saka.
GOAL OVERTURNED BY VAR: Leandro Trossard - Arsenal - scores but the goal is ruled out after a VAR review.
Corner - Arsenal. Conceded by Mark Flekken.
New attacking attempt. Gabriel Jesus - Arsenal - shot with right foot from the centre of the box is saved in the top left corner. Assist - Gabriel Martinelli.
Offside - Brentford. Christian Nørgaard with a pass, however Yoane Wissa is in offside.
Missed chance. Gabriel Jesus - Arsenal - shot with right foot from a diffucult position on the right is very close to the goal.
Frank Onyeka - Brentford - won a free kick in defence.
Fouled by Gabriel Jesus - Arsenal
Fouled by William Saliba - Arsenal
Bryan Mbeumo - Brentford - won a free kick in defence.
Corner - Brentford. Conceded by William Saliba.
Missed chance. Gabriel Magalhães - Arsenal - with an attempt from the right side of the six yard box is close, but missed. Assist - Bukayo Saka with a cross after corner.
Shot blocked. Gabriel Jesus - Arsenal - shot with left foot from the left side of the box is blocked. Assist - Oleksandr Zinchenko.
Corner - Arsenal. Conceded by Vitaly Janelt.
Hand ball by Gabriel Jesus - Arsenal
Delay over. They are ready to continue.
Missed chance. Leandro Trossard - Arsenal - shot with the head from the centre of the box is very close to the goal. Assist - Oleksandr Zinchenko with a cross.
Missed chance. Christian Nørgaard - Brentford - shot with right foot from outside the box goes high.
Leandro Trossard - Arsenal - won a free kick in defence.
Fouled by Frank Onyeka - Brentford
Fouled by Martin Ødegaard - Arsenal
Bryan Mbeumo - Brentford - won a free kick in defence.
Corner - Arsenal. Conceded by Frank Onyeka.
Fouled by Christian Nørgaard - Brentford
Declan Rice - Arsenal - won a free kick in defence.
Shot blocked. Bryan Mbeumo - Brentford - shot with left foot from the centre of the box is blocked. Assist - Yoane Wissa.
Missed chance. Yoane Wissa - Brentford - shot with right foot from the right side of the six yard box is close, but missed.
Gabriel Magalhães - Arsenal - won a free kick in defence.
Fouled by Bryan Mbeumo - Brentford
Missed chance. Leandro Trossard - Arsenal - shot with right foot from outside the box goes high. Assist - Bukayo Saka after corner.
Corner - Arsenal. Conceded by Vitaly Janelt.
Offside - Brentford. Bryan Mbeumo with a pass, however Saman Ghoddos is in offside.
Offside - Arsenal. Oleksandr Zinchenko with a pass, however Gabriel Jesus is in offside.
Missed chance. Gabriel Martinelli - Arsenal - shot with the head from the centre of the box missed to the left. Assist - Martin Ødegaard with a cross .
Leandro Trossard - Arsenal - won a free kick on the left wing.
Fouled by Frank Onyeka - Brentford
Hand ball by Yehor Yarmoliuk - Brentford
The teams are on their way out of the tunnel - and we're about to get underway at Emirates Stadium