Thomas Partey - Arsenal - has gone down, but the referee deems it simulation.
Thomas Partey - Arsenal - receive yellow card.
Shot blocked. Kurt Zouma - Chelsea - shot with right foot from outside the box is blocked. Assist - Callum Hudson-Odoi.
Corner - Chelsea. Conceded by Thomas Partey.
New attacking attempt. Kurt Zouma - Chelsea - shot with the head from the centre of the box is saved in the top centre of the goal. Assist - Hakim Ziyech.
Offside - Chelsea. Mason Mount with a pass, however Callum Hudson-Odoi is in offside.
Olivier Giroud - Chelsea - hits the bar with a shot with right foot from the right side of the six yard box.
Corner - Chelsea. Conceded by Kieran Tierney.
Substitution - Arsenal. Calum Chambers for Héctor Bellerín - injury.
SUBSTITUTION: C. Chambers COMES ON FOR H. Bellerin
New attacking attempt. Christian Pulisic - Chelsea - shot with right foot from the centre of the box is saved in the right corner. Assist - Callum Hudson-Odoi with a cross.
Corner - Chelsea. Conceded by Héctor Bellerín.
Missed chance. Olivier Giroud - Chelsea - shot with the head from the centre of the box missed to the left. Assist - Reece James with a cross.
Offside - Chelsea. Callum Hudson-Odoi with a pass, however Olivier Giroud is in offside.
SUBSTITUTION: A. Lacazette COMES ON FOR P. Aubameyang
Substitution - Arsenal. Alexandre Lacazette for Pierre-Emerick Aubameyang.
Thomas Partey - Arsenal - won a free kick in defence.
Fouled by Kurt Zouma - Chelsea
Substitution - Chelsea. Hakim Ziyech for César Azpilicueta.
SUBSTITUTION: H. Ziyech COMES ON FOR C. Azpilicueta
Shot blocked. Kieran Tierney - Arsenal - shot with left foot from outside the box is blocked.
Fouled by Reece James - Chelsea
Kieran Tierney - Arsenal - won a free kick on the left wing.
Emile Smith Rowe - Arsenal - won a free kick in defence.
Fouled by Reece James - Chelsea
Missed chance. Martin Ødegaard - Arsenal - shot with left foot from the centre of the box is high and wide to the left. Assist - Kieran Tierney with a cross.
Missed chance. Olivier Giroud - Chelsea - shot with left foot from outside the box missed to the left. Assist - Mason Mount.
Missed chance. Kurt Zouma - Chelsea - shot with right foot from outside the box is high and wide to the right. Assist - Jorginho.
Fouled by Kieran Tierney - Arsenal
Christian Pulisic - Chelsea - won a free kick in defence.
New attacking attempt. Héctor Bellerín - Arsenal - shot with right foot from the right side of the box is saved in the right corner. Assist - Martin Ødegaard.
SUBSTITUTION: H. Bellerin COMES ON FOR B. Saka
Substitution - Arsenal. Héctor Bellerín for Bukayo Saka.
SUBSTITUTION: O. Giroud COMES ON FOR K. Havertz
Substitution - Chelsea. Olivier Giroud for Kai Havertz.
Offside - Chelsea. Reece James with a pass, however Callum Hudson-Odoi is in offside.
Fouled by Mohamed Elneny - Arsenal
Jorginho - Chelsea - won a free kick in attack.
Offside - Chelsea. Kai Havertz with a pass, however Christian Pulisic is in offside.
Missed chance. Kai Havertz - Chelsea - shot with the head from the centre of the box is close, but missed. Assist - Mason Mount with a cross after corner.
VAR Decision: No Goal Chelsea 0-1 Arsenal.
Corner - Chelsea. Conceded by Bukayo Saka.
Jorginho - Chelsea - won a free kick in defence.
Fouled by Bukayo Saka - Arsenal
Missed chance. Callum Hudson-Odoi - Chelsea - shot with right foot from outside the box goes high. Assist - Reece James.
Corner - Chelsea. Conceded by Thomas Partey.
SUBSTITUTION: C. Hudson-Odoi COMES ON FOR B. Gilmour
First Half ended - Chelsea 0, Arsenal 1.
Second Half starts Chelsea 0, Arsenal 1.
Fouled by Kieran Tierney - Arsenal
Fouled by Rob Holding - Arsenal
Christian Pulisic - Chelsea - won a free kick on the left wing.
Jorginho - Chelsea - won a free kick in defence.
Substitution - Chelsea. Callum Hudson-Odoi for Billy Gilmour.
Hand ball by César Azpilicueta - Chelsea
Shot blocked. Thiago Silva - Chelsea - shot with the head from the centre of the box is blocked. Assist - Kurt Zouma with a head.
Missed chance. Kai Havertz - Chelsea - shot with the head from the centre of the box missed. Assist - Mason Mount with a cross after corner.
Corner - Chelsea. Conceded by Rob Holding.
Corner - Chelsea. Conceded by Mohamed Elneny.
Missed chance. Christian Pulisic - Chelsea - shot with the head from the right side of the six yard box goes high after corner.
Shot blocked. Kurt Zouma - Chelsea - shot with the head from the centre of the box is blocked. Assist - Mason Mount with a cross.
Corner - Chelsea. Conceded by Rob Holding.
New attacking attempt. Mason Mount - Chelsea - shot with left foot from the left side of the box is saved by goalkeeper in the centre of the goal. Assist - Kai Havertz.
Shot blocked. Mason Mount - Chelsea - shot with right foot from the centre of the box is blocked. Assist - Christian Pulisic.
Bukayo Saka - Arsenal - won a free kick in defence.
Fouled by Mason Mount - Chelsea
Goal! Chelsea 0, Arsenal 1. Emile Smith Rowe - Arsenal - shot with left foot from the centre of the box to the right corner. Assist - Pierre-Emerick Aubameyang.
Shot blocked. Martin Ødegaard - Arsenal - shot with left foot from outside the box is blocked.
Corner - Arsenal. Conceded by César Azpilicueta.
Missed chance. Kai Havertz - Chelsea - shot with left foot from the centre of the box goes high.
Hand ball by Kai Havertz - Chelsea
Offside - Arsenal. Pierre-Emerick Aubameyang with a pass, however Bukayo Saka is in offside.
Offside - Arsenal. Gabriel Magalhães with a pass, however Pierre-Emerick Aubameyang is in offside.
Fouled by Jorginho - Chelsea
Thomas Partey - Arsenal - won a free kick in defence.
New attacking attempt. Mason Mount - Chelsea - shot with right foot from the left side of the box is saved by goalkeeper in the centre of the goal. Assist - Christian Pulisic.
The teams are on their way out of the tunnel - and we're about to get underway at Emirates Stadium