Missed chance. Nicolas Pépé - Arsenal - shot with right foot from the centre of the box is high and wide to the right. Assist - Alexandre Lacazette.
SUBSTITUTION: A. Lacazette COMES ON FOR P. Aubameyang
Substitution - Arsenal. Alexandre Lacazette for Pierre-Emerick Aubameyang.
SUBSTITUTION: A. Androutsos COMES ON FOR G. Masouras
Substitution - Olympiakos. Thanasis Androutsos for Giorgos Masouras.
Goal! Olympiakos 1, Arsenal 3. Mohamed Elneny - Arsenal - shot with right foot from outside the box to the right corner. Assist - Gabriel Magalhães.
SUBSTITUTION: N. Pepe COMES ON FOR B. Saka
SUBSTITUTION: E. Smith Rowe COMES ON FOR M. Odegaard
Substitution - Arsenal. Nicolas Pépé for Bukayo Saka.
Substitution - Arsenal. Mohamed Elneny for Willian.
Substitution - Arsenal. Emile Smith Rowe for Martin Ødegaard.
SUBSTITUTION: M. Elneny COMES ON FOR Willian
Goal! Olympiakos 1, Arsenal 2. Gabriel Magalhães - Arsenal - shot with the head from the centre of the box to the right corner. Assist - Willian with a cross after corner.
Corner - Arsenal. Conceded by Andreas Bouchalakis.
SUBSTITUTION: Koka COMES ON FOR Y. El Arabi
Substitution - Olympiakos. Ahmed Hassan Mahgoub for Youssef El-Arabi.
Shot blocked. Martin Ødegaard - Arsenal - shot with left foot from outside the box is blocked. Assist - Pierre-Emerick Aubameyang.
Willian - Arsenal - won a free kick in defence.
Fouled by Youssef El-Arabi - Olympiakos
Missed chance. Willian - Arsenal - shot with left foot from outside the box goes high. Assist - Martin Ødegaard.
Martin Ødegaard - Arsenal - won a free kick in attack.
Fouled by Youssef El-Arabi - Olympiakos
Mohamed Mady Camara - Olympiakos - won a free kick in defence.
Fouled by Martin Ødegaard - Arsenal
Shot blocked. Martin Ødegaard - Arsenal - shot with left foot from the right side of the box is blocked. Assist - Dani Ceballos.
Shot blocked. Bukayo Saka - Arsenal - shot with left foot from the right side of the box is blocked. Assist - Martin Ødegaard.
Shot blocked. Youssef El-Arabi - Olympiakos - shot with right foot from the centre of the box is blocked. Assist - Lazar Randjelovic.
Corner - Olympiakos. Conceded by Héctor Bellerín.
Willian - Arsenal - won a free kick in attack.
Gabriel Magalhães - Arsenal - won a free kick in defence.
Fouled by Youssef El-Arabi - Olympiakos
Fouled by Sokratis Papastathopoulos - Olympiakos
Granit Xhaka - Arsenal - won a free kick in attack.
Fouled by Giorgos Masouras - Olympiakos
Fouled by Willian - Arsenal
Andreas Bouchalakis - Olympiakos - won a free kick in attack.
SUBSTITUTION: L. Randjelovic COMES ON FOR Bruma
Substitution - Olympiakos. Lazar Randjelovic for Bruma.
Goal! Olympiakos 1, Arsenal 1. Youssef El-Arabi - Olympiakos - shot with right foot from outside the box to the right corner.
SUBSTITUTION: D. Ceballos COMES ON FOR Thomas
Substitution - Arsenal. Dani Ceballos for Thomas Partey.
Offside - Arsenal. Martin Ødegaard with a pass, however Héctor Bellerín is in offside.
Shot blocked. Bukayo Saka - Arsenal - shot with left foot from outside the box is blocked.
Thomas Partey - Arsenal - won a free kick in defence.
Fouled by Giorgos Masouras - Olympiakos
New attacking attempt. Thomas Partey - Arsenal - shot with right foot from outside the box is saved in the left corner. Assist - Willian.
SUBSTITUTION: K. Fortounis COMES ON FOR M. Valbuena
SUBSTITUTION: J. Holebas COMES ON FOR O. Reabciuk
Substitution - Olympiakos. Konstantinos Fortounis for Mathieu Valbuena.
Substitution - Olympiakos. José Holebas for Oleg Reabciuk.
Second Half starts Olympiakos 0, Arsenal 1.
First Half ended - Olympiakos 0, Arsenal 1.
Corner - Arsenal. Conceded by Sokratis Papastathopoulos.
Mathieu Valbuena - Olympiakos - won a free kick in attack.
Gabriel Magalhães - Arsenal - receive yellow card for a foul.
Fouled by Gabriel Magalhães - Arsenal
New attacking attempt. Willian - Arsenal - shot with right foot from the left side of the box is saved in the top centre of the goal. Assist - Bukayo Saka.
Missed chance. Giorgos Masouras - Olympiakos - shot with right foot from the left side of the box is high and wide to the right.
Shot blocked. Youssef El-Arabi - Olympiakos - shot with left foot from the centre of the box is blocked. Assist - Bruma.
Pierre-Emerick Aubameyang - Arsenal - won a free kick in defence.
Fouled by Andreas Bouchalakis - Olympiakos
Andreas Bouchalakis - Olympiakos - receive yellow card for a foul.
Goal! Olympiakos 0, Arsenal 1. Martin Ødegaard - Arsenal - shot with left foot from outside the box to the high centre of the goal. Assist - Thomas Partey.
Shot blocked. Pierre-Emerick Aubameyang - Arsenal - shot with right foot from the left side of the box is blocked. Assist - Martin Ødegaard.
Shot blocked. Granit Xhaka - Arsenal - shot with left foot from outside the box is blocked.
Fouled by Oleg Reabciuk - Olympiakos
Bukayo Saka - Arsenal - won a free kick in attack.
New attacking attempt. Pierre-Emerick Aubameyang - Arsenal - shot with right foot from outside the box is saved in the top right corner.
Yann M*Vila - Olympiakos - receive yellow card for a foul.
Fouled by Yann M*Vila - Olympiakos
Bukayo Saka - Arsenal - won a free kick in attack.
New attacking attempt. Bruma - Olympiakos - shot with right foot from the centre of the box is saved by goalkeeper in the centre of the goal.
Sokratis Papastathopoulos - Olympiakos - won a free kick on the right wing.
Fouled by Pierre-Emerick Aubameyang - Arsenal
New attacking attempt. David Luiz - Arsenal - shot with right foot from outside the box is saved in the top centre of the goal.
Willian - Arsenal - won a free kick in attack.
Fouled by Kenny Lala - Olympiakos
Kieran Tierney - Arsenal - won a free kick in defence.
Fouled by Bruma - Olympiakos
Missed chance. Thomas Partey - Arsenal - shot with right foot from outside the box goes high. Assist - Martin Ødegaard.
Shot blocked. Mohamed Mady Camara - Olympiakos - shot with left foot from outside the box is blocked.
Fouled by Mathieu Valbuena - Olympiakos
Bukayo Saka - Arsenal - won a free kick in defence.
Corner - Arsenal. Conceded by Sokratis Papastathopoulos.
New attacking attempt. Pierre-Emerick Aubameyang - Arsenal - shot with the head from the centre of the box is saved in the top right corner. Assist - Héctor Bellerín with a cross.
Oleg Reabciuk - Olympiakos - won a free kick in defence.
Offside - Olympiakos. Yann M*Vila with a pass, however Youssef El-Arabi is in offside.
Fouled by Bukayo Saka - Arsenal
Missed chance. Martin Ødegaard - Arsenal - shot with left foot from the centre of the box missed. Assist - Kieran Tierney.
Granit Xhaka - Arsenal - won a free kick in attack.
Fouled by Youssef El-Arabi - Olympiakos
The teams are on their way out of the tunnel - and we're about to get underway at Emirates Stadium