Chelsea end the half strongly but Liverpool have a decent two-goal lead at Stamford Bridge.

Image source, Rex Features

Chelsea are really on top now.

Marcos Alonso wins a throw-in on the left corner after another cross is blocked by Joel Matip.

Too much space again!

Weenson: What on earth is going on Arsenal? Spend and end up as a laughing stock and trailing a relegation hopeful. Can’t defend, zero strategy. Worsening prospects with each week. Beginning to think Emery is a Thursday evening match specialist.

Anukram Adhikary: From playing one of the most exciting footballs to playing aimless passes courtesy of team selection by a headless manager.

Another long ball over the top catches Liverpool out on the left. Marcos Alonso's cross is a decent one and Adrian has to dive down low to get on top of it.

It spills slightly but Adrian just about recovers before Willian can get to it.

Image source, Reuters

Pierre-Emerick Aubameyang is offside when he's slipped in on the left but he doesn't know it yet. He cuts it back to Buyako Saka, who then fires it way over the bar.

The sight of the flag is welcome!

Cesar Azpilicueta pings a good ball into the centre and Tammy Abraham gets there ahead of Joel Matip but the header is inches wide of the left post.

Tammy Abraham is caught offside again and he shows his frustration by blasting the ball into Virgil van Dijk.

It's not going Chelsea's way at the moment.

Image source, EPA

Bad news for Chelsea as Andreas Christensen is helped off by the medical staff after making that block on Mo Salah.

He's replaced by Kurt Zouma at the back.

Dion Dublin
Former England striker on BBC Radio 5 Live

This does not look good actually for Andreas Christensen. He has not moved his knees since he went down. He looks in a lot of pain. I hope he is okay. He has got up and put some weight on it and does not look entirely comfortable. I don't think we will see him again now.

Unai Emery doesn't get up off his seat to see Ainsley Maitland-Niles as he hobbles off.

Ruthless.

A second yellow!

Ainsley Maitland-Niles comes crashing into Neil Taylor and he's hurt himself in the process. The referee waits for him to get up before showing him the card.

He's off!

Image source, Reuters

Bishop Yinkus: Torreira on bench, no wonder we have no one who could hold on to the ball or drive the team forward instead of backward. What an aimeless team we have

Mo Salah goes past one defender and cuts inside onto his left. He tries to curl it into the far corner but Andreas Christensen makes a decent block.

Image source, Getty Images

Frederic Guilbert wins a corner on the right and Sead Kolasinac is furious with his defensive teammates.

There's too much space in behind for Aston Villa and Tyrone Mings tries to exploit it a few moments later when he gets on the end of a cross from the left. He's just offside.

Postpublished at 17:06 British Summer Time 22 September 2019

17:06 BST 22 September 2019

Chelsea 0-2 Liverpool

Tammy Abraham has taken a knock and looks a bit groggy. He's holding his left shoulder while receiving treatment on the pitch.

Virgil van Dijk hangs by to check he's okay.

Image source, Getty Images

I'm sure that's just what Manchester United fans want to hear right now Alan...

Phil McNulty
BBC Sport chief football writer at Stamford Bridge

VAR certainly plays with the emotions - just as it did at The King Power Stadium yesterday when Spurs thought they had gone two up, saw the goal ruled out by VAR, then conceded against Leicester City seconds later then went on to lose.

Chelsea thought they were on terms, suffered the disappointment via VAR, and now Liverpool in complete control with a 2-0 lead.

Arsenal are dominating the ball at the Emirates but still can't find a breakthrough.

Sead Kolasinac goes for another darting run down the left but his cut-back from the backline is intercepted and the move breaks down.

Image source, Opta

Dion Dublin
Former England striker on BBC Radio 5 Live

Another really good free-kick but Firmino is completely unchallenged. It's a free header, he couldn't miss. Where is the Chelsea defence? At Stamford Bridge you should not be able to get a free header. Not to be challenged six yards out - that is terrible defending.

Jordan Henderson and Jorginho get into a tussle on the right - the Chelsea man thinks he's been caught with a swinging arm.

Referee Michael Oliver breaks it up quickly. "Settle down lads!"