82' CLOSE! Willian cuts open the West Brom defence with an incisive throughball for Lacazette. The Frenchman drills a low ball across the face of goal that evades Aubameyang on the stretch, while Furlong does well to divert it away from Tierney at the back post.
80' SAVE! Aubameyang leads a break for the Gunners down the left flank. He runs into the left inside channel and fires at goal on his left boot. Johnstone holds firm at his near post to beat the ball away.
78' CHANCE! Robinson turns past Maitland-Niles down the left flank and digs out a cross. Arsenal fail to clear the danger and Austin finds space to fire at goal on his left foot, but he lifts his strike over the bar.
75' OVER! Tierney surges down the left flank once again. He clips a cross into the middle for Willian to attack. The Brazilian connects on his left boot with a strike that appears to be heading wide. Aubameyang reacts to try to turn it towards goal, but sends his effort over the bar.
74' Tierney has acres of space to roam down the left flank. He sends an early cross into the middle that O'Shea has to divert away from the lurking presence of Lacazette.
69' Tierney is played into space once again down the left flank. However, on this occasion he lifts his cross to the back post whereas the movement from Lacazette and Saka was to the near stick.
67' Ceballos latches on to loose ball 30 yards from goal and drives a strike towards the target, but he pulls his effort wide of the left post.
63' Lacazette has scored his fourth away Premier League goal of 2020-21, his joint-highest tally on the road in the competition alongside 2018-19.
62' The Baggies have been outplayed for the second game on the bounce at home. They're heading towards another defeat unless they pull off a miracle in the final 28 minutes.
57' West Brom have come out for the second half with a stronger intent, but the Gunners look dangerous on the counter.
55' CHANCE! Lacazette latches on to a long ball over the top from Ceballos. Johnstone is caught in two minds and the Frenchman gets past him, but cannot force his strike from a tight angle past Ajayi covering on the line.
52' O'Shea sends a precise throughball for Gallagher's run in the left inside channel. He takes a poor first touch amid the presence of Holding and the ball travels out for a goal-kick.
51' Ceballos and Smith Rowe combine down the right flank to open up space for Bellerin, but the Spaniard lifts his cross straight into the hands of Johnstone.
49' Saka was a key man in the first half for the Gunners. Since the start of last season, Saka has been directly involved 22 goals in all competitions (7 goals, 15 assists) - the second most by a teenager playing for a Premier League side after Mason Greenwood (25).
47' DISALLOWED GOAL! O'Shea lifts a pass over the top for Pereira to chase in the left inside channel. He drills a low strike across goal that hits the right post and bounces out into the box. Robinson hammers home the rebound, but the home side's celebrations are short lived as the flag is up for offside against Pereira.
46' We're back underway at The Hawthorns.
West Brom have been overwhelmed for the second game in a row at home. Sam Allardyce's men have had no answers at the back and are fortunate to be only two goals behind. Matt Phillips spurned their best chance of the game firing straight at Bernd Leno. It's going to take something special for the Baggies to get a positive result out of this one.
Arsenal are in complete control of their Premier League clash against West Brom, taking a 2-0 lead into the break at The Hawthorns. Kieran Tierney put the visitors ahead with a super run and finish after cutting in from the left flank. The Gunners' second goal was even better as Alexandre Lacazette, Emile Smith Rowe and Bukayo Saka all combined to allow the latter to slot home from close range.
45' + 2' HALF-TIME: WEST BROM 0-2 ARSENAL
45' + 2' Bellerin and Saka attempt to combine with a one-two on the edge of the West Brom box, but the offload from the former travels straight through to Johnstone.
45' There will be two minutes of added time.
44' SAVE! Lacazette eases his way past Ivanovic in the left inside channel and has space and time to fire at goal. He goes for a blast from a tight angle, but his effort is repelled by Johnstone before the Baggies clear the danger.
43' West Brom are trying to edge their way back into the contest, but are lacking the quality needed to cause problems in the final third.
40' WIDE! Ajayi rises to connect with Phillips' cross from the left flank, but he can only send his effort wide of the right post.
39' Holding tries to offload to Bellerin under pressure down the right flank, but he concedes a corner in the process. That was unnecessary from the Arsenal defender.
37' O'Shea attempts a long throw into the box, but the ball slips as he throws and loops into the air. He gets a second chance to knock a cross into the middle. Leno has to be careful in the conditions, although he is able to claim it at the second attempt.
36' Heavy snow is falling at The Hawthorns and is beginning to lie on the pitch. It could make life interesting for the keepers.
34' Ceballos sends a corner into the box from the left flank and Holding rises above Ajayi to head at goal. However, his effort is straight at Johnstone, who is able to smother the ball.
32' SAVE! Smith Rowe carves apart West Brom again. He works triangular offloads with Tierney and Lacazette before feeding the Frenchman down the left inside channel. The forward sees his strike deflected towards goal, but Johnstone backpedals to turn it over the bar.
30' Arsenal break with menace again as the Baggies are caught out at the back. Aubameyang shapes to shoot, but he sees his effort charged down.
26' Tierney is the first Scotsman to score an away Premier League goal for Arsenal.
25' Lacazette wins the ball from Gallagher and turns quickly to fire at goal. However, he slices his right-footed strike well wide of the target.
24' Johnstone has to be alert just inside his box to gather a long ball over the top ahead of Lacazette.
21' CHANCE! The Baggies break on the counter as Pereira runs at the Gunners defence. He flicks a ball over the top for Phillips on the charge. The midfielder connects with his strike on the half-volley, but he drills it straight Leno, who produces a solid stop.
19' The visitors continue to have success down the right flank. Bellerin has a charge at O'Shea and hammers a cross towards the near post from the byline, but Johnstone beats it away.
18' Saka causes further problems down the right flank. He cuts inside with menace and arcs a cross towards the back post that travels wide of the target.
16' CLOSE! Saka probes down the right flank before cutting inside on his left foot. He drives a low ball towards the bottom-left corner, but it just evades the inside of the post and Aubameyang on the stretch.
14' OVER! Ceballos lifts a cross into the box from the right wing, which is cleared by the fist of Johnstone. Tierney lines up an ambitious strike on the half-volley from distance, but he sends his attempt well over the bar.
13' Gallagher brings down Smith Rowe on the right flank, handing Arsenal a free-kick in a useful position.
12' Smith Rowe tries to get the better of Ivanovic down the right flank and he wins a corner off the legs of the defender.
10' SAVE! Lacazette offloads towards Saka, who runs at the West Brom defence and charges into the box. He takes on a strike with his right foot that travels straight at Johnstone, allowing the keeper to make a comfortable save.
7' Ceballos lines up an ambitious ball over the top for Aubameyang, but it travels well away from the Gabonese and out for a goal-kick.
5' Gallagher twists and turns down the right flank for the home side. He lifts a cross into the middle, but Pablo Mari rises to clear the danger.
3' SAVE! Aubameyang breaks down the left flank and whips a cross into the box. Bellerin latches on to the delivery in the right inside channel and fires low towards goal. Johnstone makes a good stop with his boot before Saka sees his effort on the rebound blocked by Sawyers.
2' Phillips tries to angle a ball over the top for the run of Robinson, but the forward is caught offside.
1' We're underway at The Hawthorns.
West Brom are unbeaten in their last three Premier League home games against Arsenal (W2 D1), having only avoided defeat in three of their first nine against them at the Hawthorns in the competition (W1 D2 L6).
Arteta has made two changes to his team for tonight from his line-up that defeated Brighton. Elneny drops out of the team to the bench as Ceballos partners Xhaka in the midfield. Lacazette gets the call to spearhead the attack, which sees Martinelli also move to the sidelines. Aubameryang will start on the left side of a three-man attacking line behind the Frenchman.
The Baggies have made two changes in response to their hammering against Leeds. Ivanovic and Pereira get the nod to start in place of Peltier and Karlan Grant. The latter misses out altogether, while Peltier drops to the bench. West Brom could shift to a new back-three system that could see Phillips deployed as a wing-back. Robinson leads the line in the absence of Grant, with Diangana and Pereira in support.
ARSENAL SUBS: Willian, Runar Alex Runarsson, Ainsley Maitland-Niles, Nicolas Pepe, David Luiz, Mohamed Elneny, Joe Willock, Eddie Nketiah, Gabriel Martinelli.
ARSENAL (4-2-3-1): Bernd Leno; Hector Bellerin, Rob Holding, Pablo Mari, Kieran Tierney; Dani Ceballos, Granit Xhaka; Bukayo Saka, Emile Smith Rowe, Pierre-Emerick Aubameyang; Alexandre Lacazette.
WEST BROM SUBS: Kieran Gibbs, Kyle Bartley, Kamil Grosicki, Charlie Austin, Rekeem Harper, Filip Krovinovic, Lee Peltier, David Button, Cheikh Diaby.
WEST BROM (4-1-4-1): Sam Johnstone; Darnell Furlong, Semi Ajayi, Dara O'Shea, Branislav Ivanovic; Romaine Sawyers; Matheus Pereira, Matt Phillips, Conor Gallagher, Grady Diangana; Callum Robinson.
Arsenal have found life just at the right time under Mikel Arteta. The Gunners endured a seven-match winless run in the Premier League before beating Chelsea on Boxing Day. They backed up their efforts with a solid victory on the road over Brighton and Hove Albion. Arteta and his team cannot afford to rest on their laurels in their bid to maintain their momentum into the second half of the campaign.
West Brom endured a horror show in their last outing, which undid the work of their battling point against Liverpool on the road last week. Sam Allardyce's men were hammered 5-0 by Leeds on home soil, extending their winless run to six matches in all competitions. The Baggies have a major challenge on their hand in the second half of the season to haul themselves out of trouble, beginning with the Gunners tonight.
Good evening and welcome to the live commentary of the Premier League clash between West Brom and Arsenal at The Hawthorns.