Match ends, Arsenal 1, West Bromwich Albion 0.

Second Half ends, Arsenal 1, West Bromwich Albion 0.

Olivier Giroud (Arsenal) is shown the yellow card.

Graham Dorrans (West Bromwich Albion) is shown the yellow card.

Corner, West Bromwich Albion. Conceded by Per Mertesacker.

Attempt blocked. Victor Anichebe (West Bromwich Albion) left footed shot from the centre of the box is blocked. Assisted by Stéphane Sessègnon.

Attempt missed. Kim Källström (Arsenal) with an attempt from the centre of the box misses to the right. Assisted by Bacary Sagna with a cross.

Corner, Arsenal. Conceded by Diego Lugano.

Attempt missed. Jonas Olsson (West Bromwich Albion) header from the centre of the box misses to the right. Assisted by Graham Dorrans with a cross following a corner.

Corner, West Bromwich Albion. Conceded by Bacary Sagna.

Attempt blocked. Craig Dawson (West Bromwich Albion) header from the centre of the box is blocked. Assisted by Graham Dorrans with a cross.

Substitution, West Bromwich Albion. Matej Vydra replaces Youssouf Mulumbu.

Corner, West Bromwich Albion. Conceded by Laurent Koscielny.

Attempt saved. Mesut Özil (Arsenal) left footed shot from outside the box is saved in the top left corner.

Chris Brunt (West Bromwich Albion) is shown the yellow card.

Mesut Özil (Arsenal) wins a free kick in the attacking half.

Foul by Saido Berahino (West Bromwich Albion).

Substitution, West Bromwich Albion. Victor Anichebe replaces Morgan Amalfitano.

Substitution, Arsenal. Thomas Vermaelen replaces Nacho Monreal.

Attempt blocked. Lukas Podolski (Arsenal) left footed shot from the left side of the box is blocked. Assisted by Tomas Rosicky with a cross.

Lukas Podolski (Arsenal) hits the left post with a left footed shot from the centre of the box.

Attempt missed. Mesut Özil (Arsenal) right footed shot from the centre of the box misses to the left. Assisted by Olivier Giroud with a headed pass.

Attempt missed. Craig Dawson (West Bromwich Albion) right footed shot from outside the box misses to the left. Assisted by Stéphane Sessègnon.

Attempt missed. Craig Dawson (West Bromwich Albion) header from the centre of the box is just a bit too high. Assisted by Graham Dorrans with a cross following a corner.

Corner, West Bromwich Albion. Conceded by Per Mertesacker.

Attempt blocked. Morgan Amalfitano (West Bromwich Albion) left footed shot from the centre of the box is blocked. Assisted by Saido Berahino with a through ball.

Substitution, Arsenal. Tomas Rosicky replaces Santi Cazorla.

Foul by Nacho Monreal (Arsenal).

Saido Berahino (West Bromwich Albion) wins a free kick in the attacking half.

Corner, West Bromwich Albion. Conceded by Mesut Özil.

Corner, West Bromwich Albion. Conceded by Per Mertesacker.

Corner, West Bromwich Albion. Conceded by Laurent Koscielny.

Nacho Monreal (Arsenal) is shown the yellow card for a bad foul.

Foul by Nacho Monreal (Arsenal).

Stéphane Sessègnon (West Bromwich Albion) wins a free kick in the defensive half.

Substitution, Arsenal. Kim Källström replaces Mikel Arteta.

Corner, Arsenal. Conceded by Jonas Olsson.

Corner, Arsenal. Conceded by Chris Brunt.

Attempt blocked. Lukas Podolski (Arsenal) left footed shot from the centre of the box is blocked. Assisted by Nacho Monreal.

Corner, West Bromwich Albion. Conceded by Nacho Monreal.

Corner, Arsenal. Conceded by Craig Dawson.

Corner, Arsenal. Conceded by Craig Dawson.

Foul by Lukas Podolski (Arsenal).

James Morrison (West Bromwich Albion) wins a free kick on the right wing.

Hand ball by Mikel Arteta (Arsenal).

Per Mertesacker (Arsenal) wins a free kick in the defensive half.

Foul by Stéphane Sessègnon (West Bromwich Albion).

Second Half begins Arsenal 1, West Bromwich Albion 0.

First Half ends, Arsenal 1, West Bromwich Albion 0.

Corner, Arsenal. Conceded by Craig Dawson.

Attempt saved. Mathieu Flamini (Arsenal) right footed shot from outside the box is saved in the centre of the goal. Assisted by Santi Cazorla.

Foul by Olivier Giroud (Arsenal).

Jonas Olsson (West Bromwich Albion) wins a free kick in the defensive half.

Mesut Özil (Arsenal) wins a free kick in the attacking half.

Foul by Graham Dorrans (West Bromwich Albion).

Foul by Laurent Koscielny (Arsenal).

Morgan Amalfitano (West Bromwich Albion) wins a free kick in the defensive half.

Attempt blocked. Olivier Giroud (Arsenal) left footed shot from outside the box is blocked. Assisted by Mesut Özil.

Attempt missed. Craig Dawson (West Bromwich Albion) header from the centre of the box is too high. Assisted by Graham Dorrans with a cross following a corner.

Corner, West Bromwich Albion. Conceded by Laurent Koscielny.

Foul by Lukas Podolski (Arsenal).

Youssouf Mulumbu (West Bromwich Albion) wins a free kick in the attacking half.

Mathieu Flamini (Arsenal) wins a free kick on the right wing.

Foul by Stéphane Sessègnon (West Bromwich Albion).

Corner, Arsenal. Conceded by Ben Foster.

Attempt saved. Santi Cazorla (Arsenal) left footed shot from the centre of the box is saved in the bottom left corner. Assisted by Lukas Podolski.

Attempt missed. Saido Berahino (West Bromwich Albion) right footed shot from outside the box is too high. Assisted by Graham Dorrans.

Offside, West Bromwich Albion. Saido Berahino is caught offside.

Attempt saved. Graham Dorrans (West Bromwich Albion) right footed shot from outside the box is saved in the top centre of the goal. Assisted by Stéphane Sessègnon.

Bacary Sagna (Arsenal) wins a free kick in the defensive half.

Foul by Saido Berahino (West Bromwich Albion).

Attempt blocked. Mathieu Flamini (Arsenal) right footed shot from the right side of the box is blocked. Assisted by Mesut Özil.

Attempt missed. Santi Cazorla (Arsenal) right footed shot from the centre of the box is too high. Assisted by Olivier Giroud.

Attempt missed. James Morrison (West Bromwich Albion) right footed shot from more than 35 yards is high and wide to the left.

Corner, West Bromwich Albion. Conceded by Bacary Sagna.

Foul by Mathieu Flamini (Arsenal).

Youssouf Mulumbu (West Bromwich Albion) wins a free kick in the defensive half.

Corner, Arsenal. Conceded by Chris Brunt.

Foul by Mikel Arteta (Arsenal).

Stéphane Sessègnon (West Bromwich Albion) wins a free kick in the defensive half.

Lukas Podolski (Arsenal) wins a free kick in the defensive half.

Foul by James Morrison (West Bromwich Albion).

Goal! Arsenal 1, West Bromwich Albion 0. Olivier Giroud (Arsenal) header from very close range to the bottom left corner. Assisted by Santi Cazorla with a cross following a corner.

Corner, Arsenal. Conceded by Youssouf Mulumbu.

Attempt blocked. Santi Cazorla (Arsenal) left footed shot from the centre of the box is blocked.

Attempt blocked. Santi Cazorla (Arsenal) left footed shot from outside the box is blocked. Assisted by Bacary Sagna.

Attempt blocked. Saido Berahino (West Bromwich Albion) right footed shot from a difficult angle on the left is blocked. Assisted by James Morrison.

Attempt missed. Lukas Podolski (Arsenal) left footed shot from the left side of the box is close, but misses to the left. Assisted by Olivier Giroud.

Offside, West Bromwich Albion. Saido Berahino is caught offside.

First Half begins.

Lineups are announced and players are warming up.