When Arsenal do have the ball, it's in front of Liverpool who are holding their shape.

Takehiro Tomiyasu lofts a pass over the top which sails out of play for a goal kick.

The Gunners lacking ideas at the moment.

Chris Sutton
Former Premier League striker on BBC Radio 5 Live

We haven't seen enough of Bukayo Saka. Arsenal haven't fed him the ball.

Image source, Getty Images

Arsenal are struggling to lay a glove on Liverpool now, the Reds are keeping them at arms length.

Mikel Arteta did say five of the players hadn't been able to train.

Mikel Arteta should have started Emile Smith Rowe.

Oh wait...

A quick move from Arsenal, that's better.

Bukayo Saka eventually receives a pass down the right edge of the box but the shot with his weaker foot is blocked by Joel Matip.

Chris Sutton
Former Premier League striker on BBC Radio 5 Live

The goal has given Liverpool a foothold. The team are playing with a confidence; Arsenal have been shocked and haven't found rhythm since Jota scored.

Half an hour gone, Liverpool are full of confidence now and popping the ball to each other.

Arsenal boss Mikel Arteta is out on the touchline frantically gesturing to his players.

Great tackle from the midfield destroyer.

Kieran Tierney fizzes a pass into the feet of Gabriel Martinelli inside the area, the Brazilian's touch sends Virgil van Dijk the wrong way to open up the space, but compatriot Fabinho gets back to make an inch perfect sliding challenge.

Image source, Getty Images

You feel Arsenal had to score when they were on top, now Liverpool are controlling the game and the hosts have to come out and chase it.

That'll leave more gaps for the Reds to exploit.

Phil McNulty
BBC Sport chief football writer at Emirates Stadium

Great run by Diogo Jota but the shot was scuffed. It was enough to beat Aaron Ramsdale, who should have done better.

Big blow to Arsenal, who had started well. Agitation and frustration among The Gunners' support.

JChester United: Harsh on Arsenal, but they should really check their boots, that goal comes from them constantly slipping over and have been doing so all game.

Stavros Makro: Terrible positioning from Ramsdale there,he's hugely responsible for the goal.

Matty AFC: Tomi and Ramsdale - two of our best performers this season - seemed to be moving in slow motion for that goal. Very disappointing but plenty of time to turn the game around.

Chris Sutton
Former Premier League striker on BBC Radio 5 Live

That is brilliant from Jota. He gets a little lucky with the finish and the ball trundles past Ramsdale. It is a lovely touch by Firmino to release Alexander-Arnold. He pops the ball out left; Jota keeps going after a little nutmeg on Tomiyasu. He hits a shot right footed and Ramsdale will be disappointed. There is no pace on the shot.

No away goals tonight so if the tie is level at full-time, we head to extra-time and possibly penalties too.

Chris Sutton
Former Premier League striker on BBC Radio 5 Live

All of Arsenal's threat has come down their left. Liverpool have Trent Alexander-Arnold with Kaide Gordon ahead of him; Kieran Tierney and Gabriel Martinelli are certainly winning the battle in the early stages.

It's settled down a little after that early burst from Arsenal.

Liverpool need to take the ball down and control the tempo a bit better.

Chris Sutton
Former Premier League striker on BBC Radio 5 Live

Arsenal are pinning Liverpool back. We've seen no runs in behind from the Liverpool forwards. Everything is in front of Arsenal and they are exploiting that; Lokonga sitting the deepest, Arsenal are a 4-1-4-1. Lacazette is leading the line well and the midfield four are hunting. Liverpool can't find a rhythm.

Image source, Getty Images

Liverpool have the ball in the net.

Joel Matip pokes in from a couple of yards out following Fabinho's knock down, but it's disallowed for offside.

Liverpool's centre-half is clearly off.

Liverpool finally make a foray forward and earn their first corner of the game.

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