Offside called against Arsenal. Kieran Tierney has been flagged for offside. Oleksandr Zinchenko is also in an offside position.

The attempt is thwarted. Gabriel Martinelli of Arsenal fires a right-footed shot from the middle of the penalty area, but it's blocked. The assist came from William Saliba, who delivered a precise through ball. Martinelli's shot is denied.

Kevin Schade of Brentford has been shown a yellow card for committing a foul.

Kevin Schade of Brentford commits a foul.

Offside call against Arsenal. Ethan Nwaneri has been flagged for offside, and Oleksandr Zinchenko is also in an offside position.

Corner awarded to Arsenal after a play that resulted in a save by Mark Flekken. Arsenal will take the corner kick.

Missed opportunity. Oleksandr Zinchenko of Arsenal took a left-footed shot from the right side of the penalty area following a corner, but it went just wide. Zinchenko's attempt was off target.

Corner awarded to Arsenal after a deflection off Sepp van den Berg. Sepp van den Berg will take the corner kick.

The attempt on goal was thwarted. Christian Nørgaard of Brentford headed the ball from the center of the penalty area, but his shot was blocked. The assist came from Bryan Mbeumo, who delivered a cross. Nørgaard's shot has been denied.

Missed opportunity. Mikkel Damsgaard from Brentford attempted a left-footed shot from the left side of the penalty area, but it went just wide to the left following a corner kick. Mikkel Damsgaard's shot was off target.

Christian Nørgaard of Brentford has been shown a yellow card for committing a foul.

Christian Nørgaard from Brentford committed a foul.

Offside call against Arsenal. Kieran Tierney has been flagged for offside. Ethan Nwaneri is also in an offside position.

VAR Update: Goal Disallowed for Arsenal, score remains 0-0 against Brentford. Kieran Tierney involved in the review - Referee's decision.

Goal! Arsenal takes the lead with a score of 1-0 against Brentford. Kieran Tierney scores with a powerful header from the center of the box following a corner kick. Kieran Tierney finds the back of the net with a well-placed header.

Corner awarded to Arsenal after Yoane Wissa allowed the ball to go out. Yoane Wissa will take the corner kick.

Corner awarded to Arsenal after a defensive play by Keane Lewis-Potter. Keane Lewis-Potter will take the corner kick.

Corner awarded to Arsenal after Christian Nørgaard's defensive play. Gabriel Martinelli will take the corner kick.

The attempt is thwarted. Gabriel Martinelli from Arsenal takes a right-footed shot from the left side of the penalty area, but it's successfully blocked. The assist came from Leandro Trossard. Martinelli's shot is denied.

Another offensive push from Brentford. Kristoffer Ajer takes a right-footed shot from the right side of the penalty area, but it's saved in the bottom right corner. The assist came from Bryan Mbeumo. Ajer's shot is on target.

Corner awarded to Brentford after a foul by Thomas Partey. Thomas Partey will take the corner kick.

Corner awarded to Arsenal after a save by Mark Flekken. It's a corner kick for Arsenal.

The attempt is thwarted. Ethan Nwaneri from Arsenal takes a left-footed shot from the right side of the penalty area, but it's blocked. The assist came from Declan Rice. Ethan Nwaneri's shot is denied.

Thomas Partey from Arsenal commits a foul.

Yoane Wissa from Brentford committed a foul.

Ethan Nwaneri from Arsenal committed a foul.

Jorginho commits a foul on an Arsenal player.

The opening half is underway...

Yoane Wissa from Brentford earns a free kick in his team's defensive zone.

The opening half is underway...

The team rosters have been revealed, and the players are currently going through their pre-match warm-up routines.

Corner awarded to Brentford after Kieran Tierney allowed the ball to go out.

Corner awarded to Arsenal after Kristoffer Ajer allowed the ball to go out.