Everton manager Roberto Martinez makes two changes from the side which won 2-1 at QPR as the injured Romelu Lukaku is replaced by Ross Barkley. The Toffees also recall Gareth Barry for Darron Gibson in midfield. Kevin Mirallas is considered fit enough for a place on the bench.

Southampton boss Ronald Koeman is without injured goalkeeper Fraser Forster so Kelvin Davis deputises between the sticks. The Dutchman also includes Victor Wanyama, James Ward-Prowse and Eljero Elia with Steven Davies, Sadio Mane and Dusan Tadic the men to make way.

Everton XI: Howard, Baines, Jagielka, Stones, Coleman, Barry, McCarthy, Osman, Barkley, Lennon, Kone

Southampton XI: Davis, Bertrand, Fonte, Alderweireld, Clyne, Schneiderlin, Wanyama, Ward-Prowse, Elia, Long, Pelle

West Brom boss Tony Pulis brings back fit-again striker Brown Ideye - five goals in his last eight games - to partner Saido Berahino up front. Craig Dawson serves a one-match ban, after the red card debacle in defeat at Manchester City last time out. Gareth McAuley, who starts today, was mistakenly sent off instead of Dawson by ref Neil Swarbrick, who later admitted he had made a mistake.

QPR boss Chris Ramsey makes one change from the side which lost at home to Everton, with Eduardo Vargas - who scored his second goal of the season in that game after coming on as a sub - replacing Junior Hoilet on the left wing. Bobby Zamora starts alongside 15-goal Charlie Austin in attack.

West Brom XI: Myhill, Baird, McAuley, Lescott, Brunt, Gardner, Fletcher, Morrison, Sessegnon, Berahino, Ideye

QPR XI: Green, Isla, Onuoha, Caulker, Suk-Young, Phillips, Sandro, Barton, Vargas, Austin, Zamora.

Tokunbo: Mathieu Flamini is too clumsy for a defensive midfielder. Little wonder he has lost his place in the team.

Steve Howes: Game-changers are worth £50m or £150k a week. Raheem Sterling is not worth either.

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Image source, PA

Raheem Sterling has a penalty appeal waved away after a coming together with Hector Bellerin on the edge of the area, nothing in that for me.

Arsenal had 60% of possession in the first half, Liverpool have had 65% since half-time. Arsenal three up and counting down the minutes until full-time.

Only one change for Manchester United from the side that won 2-1 against Liverpool in their last Premier League match as Marcos Rojo replaces Chris Smalling in defence. Angel Di Maria and Radamel Falcao are among the United substitutes.

Tom Cleverley, on loan at Aston Villa, is ineligible to play against his parent side, while Leandro Bacuna and Scott Sinclair also drop out. Matthew Lowton, Carlos Sanchez and Andreas Weimann start and Ron Vlaar is on the bench after six weeks out because of a calf problem.

Manchester United XI: De Gea, Valencia, Jones, Rojo, Blind, Carrick, Herrera, Mata, Fellaini, Young, Rooney.

Aston Villa XI: Guzan, Hutton, Okore, Clark, Lowton, Delph, Sanchez, N'Zogbia, Weimann, Agbonlahor, Benteke.

BBC Sport's Rob Westall at Liberty Stadium:

Swansea City boss Garry Monk keeps faith with the side that started the win at Aston Villa. Midfielder Matt Grimes and forward Marvin Emnes replace the injured Jefferson Montero and Jay Fulton on the bench.

Hull City manager Steve Bruce makes just one change to the side that began the 3-2 defeat against Chelsea with Robbie Brady coming in for Andrew Robertson.

Swansea City XI: Fabianski, Naughton, Fernandez, Williams, Taylor, Cork, Ki Sung-yueng, Shelvey, Sigurdsson, Routledge, Gomis. Subs: Amat, Dyer, Oliveira, Montero, Rangel, Tremmel, Fulton

Hull City XI: McGregor, Dawson, Bruce, McShane, Elmohamady, Meyler, Livermore, Ramirez, Robertson, N'Doye, Hernandez. Subs: Harper, Rosenior, Chester, Diame, Sagbo, Aluko, Quinn.

Martin Keown
Former Arsenal defender for BBC Radio 5 Live at the Emirates

"It has been a good five minutes or so for Liverpool. It is always a test when you go down 3-0 in these circumstances but they are still going forward. They only know one way to play."

Phil McNulty
BBC Sport chief football writer

"It's all settled down a bit after the mayhem of those closing stages of the first half. Arsenal are protecting their lead while looking to hit Liverpool on the counter.

"And, as is the nature of football fans, you sense Arsenal's fans will only relax when they have a fourth goal."

Image source, Getty Images

Philippe Coutinho squeezes a low shot wide from 25 yards at a silent Emirates. This game was done and dusted in the time it took Karl to make his lunch [see 13:45] and now it's all very flat.

Mathieu Flamini is a lucky man though. An ugly lunge on Joe Allen is not carded and it could have been. Referee Anthony Taylor missed out there.

James, London: Sterling seems to want to shoot from unlikely distances every time he has the ball. A bit of 'headline syndrome' following the media attention recently.

Jon: Brendan Rodgers might not be the best tactician, but has to be the best at clapping his hands on the touch line. Great intensity.

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Arsenal have got the game won - or so they think - so they bring on Mathieu Flamini for Aaron Ramsey. Shut up shop.

Image source, Reuters

You can't fault Brendan Rodgers for optimism. He's still at the edge of his technical area, cajoling and clapping away.

Arsenal don't really know whether to stick or twist, they throw men forwards and lose it cheaply, They've gone empty in midfield and Liverpool counter, Emre Can testing David Ospina for the first real time from range.

It's almost a fabulous fourth for Arsenal as they pick Liverpool apart with a cracking move, dividing the visiting defence with ease. Mesut Ozil has the final pass and clips in a cross for Olivier Giroud to attack, he meets it powerfully and Simon Mignolet has to make a cracking one-handed save. Mignolet's reaction is pure anger at those in front of him.

Brendan Rodgers out of his seat, clapping away as Liverpool put a neat move together out on the left, it ends though as Raheem Sterling leans back and fires over the bar. Well over too.

Understandably, predictably, the second half has started at a tepid pace.

Image source, @sergegnabry/Twitter

Arsenal youngster Serge Gnabry enjoyed that first half.

Martin Keown
Former Arsenal defender for BBC Radio 5 Live at the Emirates

Image source, Reuters

"It looks like Raheem Sterling is wide left and Lucas is deeper. They are pushing the wing-backs high up the pitch. They are going for it. Rodgers is looking for a big response."

Chris, Preston: This could be the game that makes Raheem Sterling's mind up for him. Unlikely he'll want to stay at Liverpool with no Champions League next season.

Ade Williams: It was inevitable that if Liverpool struggled today, Sterling would come under fire, and rightly so.

Rishabh Kapoor: How I wish Markovic and Sterling hadn't messed up before. Here's still hoping for a draw with a Sturridge hat-trick.

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Interesting change from Arsenal now as Gabriel replaces Laurent Koscielny at the back. I didn't see the Frenchman struggling with an injury at all.

Emre Can is shown a yellow card for stretching and catching Santi Cazorla.