Substitution - Arsenal. Joseph Willock for Gabriel Martinelli.
Second Half ended - Chelsea 2, Arsenal 2.
Michy Batshuayi - Chelsea - won a free kick in defence.
Fouled by Alexandre Lacazette - Arsenal
Corner - Chelsea. Conceded by Matteo Guendouzi.
SUBSTITUTION: Joe Willock COMES ON FOR Gabriel Martinelli
Corner - Chelsea. Conceded by Rob Holding.
Missed chance. Michy Batshuayi - Chelsea - shot with left foot from the centre of the box is close, but missed.
Goal! Chelsea 2, Arsenal 2. Héctor Bellerín - Arsenal - shot with left foot from outside the box to the left corner. Assist - Lucas Torreira.
Goal! Chelsea 2, Arsenal 1. César Azpilicueta - Chelsea - shot with right foot from the centre of the box to the left corner. Assist - Callum Hudson-Odoi with a cross after corner.
Matteo Guendouzi - Arsenal - won a free kick in attack.
Fouled by Mason Mount - Chelsea
Offside - Chelsea. César Azpilicueta with a pass, however Michy Batshuayi is in offside.
Substitution - Arsenal. Rob Holding for Nicolas Pépé.
SUBSTITUTION: R. Holding COMES ON FOR Nicolas Pépé
Corner - Chelsea. Conceded by Bernd Leno.
New attacking attempt. Ross Barkley - Chelsea - shot with the head from the centre of the box is saved in the left corner. Assist - Jorginho with a through ball.
Missed chance. Ross Barkley - Chelsea - shot with right foot from outside the box missed to the left after corner.
SUBSTITUTION: Michy Batshuayi COMES ON FOR Willian
Corner - Chelsea. Conceded by Héctor Bellerín.
Substitution - Chelsea. Michy Batshuayi for Willian.
New attacking attempt. Tammy Abraham - Chelsea - shot with the head from the centre of the box is saved in the top centre of the goal. Assist - Emerson with a cross.
BOOKING: Mattéo Guendouzi
Matteo Guendouzi - Arsenal - receive yellow card for a foul.
Mason Mount - Chelsea - won a free kick on the left wing.
Fouled by Matteo Guendouzi - Arsenal
New attacking attempt. Willian - Chelsea - shot with right foot from the left side of the box is saved in the top left corner. Assist - Andreas Christensen.
Offside - Arsenal. Nicolas Pépé with a pass, however Alexandre Lacazette is in offside.
Corner - Arsenal. Conceded by César Azpilicueta.
Substitution - Chelsea. Mason Mount for N Golo Kanté.
SUBSTITUTION: Mason Mount COMES ON FOR N Golo Kanté
Matteo Guendouzi - Arsenal - won a free kick in defence.
Fouled by N Golo Kanté - Chelsea
Shot blocked. Ross Barkley - Chelsea - shot with left foot from outside the box is blocked. Assist - Jorginho.
SUBSTITUTION: Ross Barkley COMES ON FOR Mateo Kovacic
Substitution - Chelsea. Ross Barkley for Mateo Kovacic.
New attacking attempt. Antonio Rüdiger - Chelsea - shot with right foot from outside the box is saved in the right corner. Assist - Mateo Kovacic.
GOAL! Gabriel Martinelli!
Goal! Chelsea 1, Arsenal 1. Gabriel Martinelli - Arsenal - shot with right foot from the centre of the box to the centre of the goal. Assist - Shkodran Mustafi following a fast break.
Alexandre Lacazette - Arsenal - won a free kick in defence.
Fouled by Andreas Christensen - Chelsea
Andreas Christensen - Chelsea - receive yellow card for a foul.
BOOKING: Andreas Christensen
Shot blocked. Mateo Kovacic - Chelsea - shot with right foot from the centre of the box is blocked. Assist - Emerson with a head.
Nicolas Pépé - Arsenal - won a free kick in defence.
SUBSTITUTION: Mattéo Guendouzi COMES ON FOR M. Özil
Substitution - Arsenal. Matteo Guendouzi for Mesut Özil.
Fouled by César Azpilicueta - Chelsea
Bukayo Saka - Arsenal - won a free kick in defence.
Fouled by Héctor Bellerín - Arsenal
Willian - Chelsea - won a free kick in defence.
Shot blocked. N Golo Kanté - Chelsea - shot with left foot from the centre of the box is blocked. Assist - César Azpilicueta.
Gabriel Martinelli - Arsenal - won a free kick in defence.
First Half ended - Chelsea 1, Arsenal 0.
Fouled by Callum Hudson-Odoi - Chelsea
Second Half starts Chelsea 1, Arsenal 0.
Missed chance. Mateo Kovacic - Chelsea - shot with the head from the centre of the box missed to the left. Assist - Callum Hudson-Odoi with a cross.
Missed chance. Antonio Rüdiger - Chelsea - shot with the head from the centre of the box is high and wide to the left. Assist - Emerson with a cross after corner.
Corner - Arsenal. Conceded by Emerson.
Fouled by Antonio Rüdiger - Chelsea
Offside - Chelsea. Jorginho with a pass, however César Azpilicueta is in offside.
New attacking attempt. Callum Hudson-Odoi - Chelsea - shot with right foot from outside the box is saved by goalkeeper in the centre of the goal. Assist - N Golo Kanté.
Shot blocked. Emerson - Chelsea - shot with left foot from the left side of the box is blocked. Assist - Tammy Abraham.
Goal! Chelsea 1, Arsenal 0. Jorginho - Chelsea - converts the penalty with a shot with right foot to the right corner.
Penalty conceded by David Luiz - Arsenal - after a foul in the penalty area.
Penalty Chelsea. Tammy Abraham draws a foul in the penalty area.
David Luiz - Arsenal - receive red card.
Lucas Torreira - Arsenal - won a free kick in defence.
Corner - Chelsea. Conceded by Granit Xhaka.
Shot blocked. Jorginho - Chelsea - shot with right foot inside of six yard box - left side is blocked. Assist - Emerson with a cross.
Fouled by Emerson - Chelsea
Emerson - Chelsea - receive yellow card for a foul.
Nicolas Pépé - Arsenal - won a free kick on the right wing.
Fouled by Willian - Chelsea
New attacking attempt. Tammy Abraham - Chelsea - shot with the head from the centre of the box is saved by goalkeeper in the centre of the goal. Assist - Antonio Rüdiger with a head.
Corner - Chelsea. Conceded by Gabriel Martinelli.
Missed chance. Andreas Christensen - Chelsea - shot with the head from few metres is close, but missed. Assist - Emerson with a cross after corner.
Shot blocked. Mateo Kovacic - Chelsea - shot with left foot from the centre of the box is blocked. Assist - César Azpilicueta.
Fouled by Lucas Torreira - Arsenal
Corner - Arsenal. Conceded by Mateo Kovacic.
Emerson - Chelsea - won a free kick in defence.
Corner - Arsenal. Conceded by Antonio Rüdiger.
Corner - Chelsea. Conceded by David Luiz.
Tammy Abraham - Chelsea - won a free kick in attack.
Fouled by David Luiz - Arsenal
Thats all. Game finished - Chelsea 2, Arsenal 2.
The teams are on their way out of the tunnel - and we're about to get underway at Emirates Stadium