Match ends, West Ham United 1, Olympiakos 0.

Second Half ends, West Ham United 1, Olympiakos 0.

Mady Camara (Olympiakos) is shown the yellow card.

Jarrod Bowen (West Ham United) is shown the yellow card.

Konstantinos Fortounis (Olympiakos) is shown the yellow card.

Foul by Vladimír Coufal (West Ham United).

Konstantinos Fortounis (Olympiakos) wins a free kick on the left wing.

Delay over. They are ready to continue.

Delay in match because of an injury Jarrod Bowen (West Ham United).

Substitution, Olympiakos. Pep Biel replaces Santiago Hezze.

Substitution, West Ham United. Divin Mubama replaces Mohammed Kudus.

Offside, Olympiakos. Francisco Ortega tries a through ball, but Konstantinos Fortounis is caught offside.

Attempt missed. Rodinei (Olympiakos) left footed shot from the right side of the box is close, but misses the top left corner. Assisted by Gustavo Scarpa.

Foul by Lucas Paquetá (West Ham United).

Mady Camara (Olympiakos) wins a free kick in the attacking half.

Mady Camara (Olympiakos) hits the right post with a header from the right side of the six yard box. Assisted by Jackson Porozo following a corner.

Attempt missed. Jackson Porozo (Olympiakos) header from the left side of the six yard box misses to the right. Assisted by Konstantinos Fortounis with a cross following a corner.

Corner, Olympiakos. Conceded by Konstantinos Mavropanos.

Attempt missed. Konstantinos Mavropanos (West Ham United) header from the centre of the box misses to the right. Assisted by James Ward-Prowse with a cross following a set piece situation.

Substitution, West Ham United. Maxwel Cornet replaces Saïd Benrahma.

Jackson Porozo (Olympiakos) is shown the yellow card for a bad foul.

Mohammed Kudus (West Ham United) wins a free kick in the attacking half.

Foul by Jackson Porozo (Olympiakos).

Offside, Olympiakos. Mady Camara tries a through ball, but Giorgos Masouras is caught offside.

Attempt missed. Mohammed Kudus (West Ham United) left footed shot from outside the box is close, but misses to the right. Assisted by Lucas Paquetá.

Substitution, West Ham United. Tomás Soucek replaces Edson Álvarez.

Corner, West Ham United. Conceded by Francisco Ortega.

Substitution, Olympiakos. Giorgos Masouras replaces Daniel Podence.

Substitution, Olympiakos. Gustavo Scarpa replaces Sotiris Alexandropoulos.

Goal! West Ham United 1, Olympiakos 0. Lucas Paquetá (West Ham United) left footed shot from the centre of the box to the centre of the goal. Assisted by James Ward-Prowse with a through ball.Goal awarded following VAR Review.

Edson Álvarez (West Ham United) wins a free kick in the defensive half.

Foul by Santiago Hezze (Olympiakos).

Foul by Jarrod Bowen (West Ham United).

Francisco Ortega (Olympiakos) wins a free kick in the defensive half.

Corner, West Ham United. Conceded by Francisco Ortega.

Attempt blocked. Saïd Benrahma (West Ham United) right footed shot from the centre of the box is blocked.

Attempt saved. James Ward-Prowse (West Ham United) right footed shot from the centre of the box is saved in the bottom right corner. Assisted by Jarrod Bowen.

Foul by Vladimír Coufal (West Ham United).

Konstantinos Fortounis (Olympiakos) wins a free kick in the defensive half.

Substitution, Olympiakos. Ayoub El Kaabi replaces Stevan Jovetic.

Corner, Olympiakos. Conceded by Nayef Aguerd.

Attempt blocked. Sotiris Alexandropoulos (Olympiakos) right footed shot from a difficult angle on the right is blocked. Assisted by Rodinei.

Attempt missed. Mady Camara (Olympiakos) right footed shot from outside the box misses to the right. Assisted by Santiago Hezze.

Attempt missed. Konstantinos Fortounis (Olympiakos) left footed shot from a difficult angle on the left is just a bit too high. Assisted by Santiago Hezze.

Delay over. They are ready to continue.

Delay in match because of an injury Sotiris Alexandropoulos (Olympiakos).

Delay over. They are ready to continue.

Delay in match because of an injury Santiago Hezze (Olympiakos).

Second Half begins West Ham United 0, Olympiakos 0.

First Half ends, West Ham United 0, Olympiakos 0.

Attempt blocked. Lucas Paquetá (West Ham United) left footed shot from outside the box is blocked.

Lucas Paquetá (West Ham United) wins a free kick in the defensive half.

Foul by Rodinei (Olympiakos).

Delay over. They are ready to continue.

Delay in match because of an injury Sotiris Alexandropoulos (Olympiakos).

Hand ball by Jarrod Bowen (West Ham United).

Delay over. They are ready to continue.

Delay in match because of an injury Lucas Paquetá (West Ham United).

Delay over. They are ready to continue.

Daniel Podence (Olympiakos) is shown the yellow card for a bad foul.

Delay in match because of an injury Jackson Porozo (Olympiakos).

Emerson (West Ham United) wins a free kick in the attacking half.

Foul by Daniel Podence (Olympiakos).

Attempt missed. Daniel Podence (Olympiakos) right footed shot from the centre of the box misses to the right. Assisted by Francisco Ortega with a cross.

Foul by Edson Álvarez (West Ham United).

Konstantinos Fortounis (Olympiakos) wins a free kick in the defensive half.

Attempt missed. Nayef Aguerd (West Ham United) header from the centre of the box misses to the left. Assisted by James Ward-Prowse with a cross following a corner.

Corner, West Ham United. Conceded by Jackson Porozo.

Attempt blocked. Jarrod Bowen (West Ham United) header from the centre of the box is blocked. Assisted by James Ward-Prowse with a cross.

Corner, West Ham United. Conceded by Alexandros Paschalakis.

Attempt saved. Saïd Benrahma (West Ham United) right footed shot from the centre of the box is saved in the bottom left corner. Assisted by Lucas Paquetá.

Mohammed Kudus (West Ham United) is shown the yellow card.

Foul by Mohammed Kudus (West Ham United).

Stevan Jovetic (Olympiakos) wins a free kick on the left wing.

Attempt blocked. Stevan Jovetic (Olympiakos) left footed shot from outside the box is blocked.

Attempt missed. Nayef Aguerd (West Ham United) header from the centre of the box is close, but misses the top right corner. Assisted by James Ward-Prowse with a cross following a corner.

Corner, West Ham United. Conceded by Francisco Ortega.

Lucas Paquetá (West Ham United) wins a free kick in the defensive half.

Foul by Mady Camara (Olympiakos).

Edson Álvarez (West Ham United) is shown the yellow card for a bad foul.

Foul by Edson Álvarez (West Ham United).

Sotiris Alexandropoulos (Olympiakos) wins a free kick in the defensive half.

Corner, Olympiakos. Conceded by Konstantinos Mavropanos.

Foul by Nayef Aguerd (West Ham United).

Stevan Jovetic (Olympiakos) wins a free kick in the attacking half.

Attempt missed. Jarrod Bowen (West Ham United) header from the centre of the box is high and wide to the right. Assisted by Vladimír Coufal with a cross.

Attempt saved. Nayef Aguerd (West Ham United) header from the centre of the box is saved in the bottom right corner. Assisted by James Ward-Prowse with a cross.

Corner, West Ham United. Conceded by Alexandros Paschalakis.

Attempt saved. Saïd Benrahma (West Ham United) right footed shot from the left side of the box is saved in the top right corner. Assisted by Lucas Paquetá.

Offside, Olympiakos. Rodinei tries a through ball, but Konstantinos Fortounis is caught offside.

Corner, Olympiakos. Conceded by Lucas Paquetá.

Attempt blocked. Sotiris Alexandropoulos (Olympiakos) header from a difficult angle on the right is blocked. Assisted by Konstantinos Fortounis with a cross.

Corner, Olympiakos. Conceded by Emerson.

Attempt missed. Saïd Benrahma (West Ham United) right footed shot from outside the box is close, but misses to the left. Assisted by James Ward-Prowse.

First Half begins.

Lineups are announced and players are warming up.