Andrew Robertson nearly bags on his 200th Liverpool appearance but his drive from the left skips past the far post.

Liverpool change incoming too.

Jordan Henderson trudges off with James Milner coming on and taking the armband too.

Double change for Arsenal.

Eddie Nketiah replaces Alexandre Lacazette while Thomas Partey is on in place of the disappointing Emile Smith Rowe.

Khan Karn: Liverpool could have has 4/5 by now. Konate, Minamino and Gordon should have all scored. Could come back to hurt them.

Better from Arsenal, asking a few questions now.

It's Gabriel Martinelli who is leading the charge, smashing a shot from the angle which Caoimhin Kelleher tips over.

The home side cannot make anything of the corner.

Gabriel Martinelli digs a cross out but Virgil van Dijk heads away at the back post.

Arsenal threatening to threaten?

Chris Sutton
Former Premier League striker on BBC Radio 5 Live

Arsenal just haven't been creative enough; they don't have the confidence to play through Liverpool, who are pressing high.

Liverpool could have ended this tie but are not taking their opportunities.

This one comes Takumi Minamino's way, but a low shot is blocked on the line by Ben White.

No, that's no good from Emile Smith Rowe.

Arsenal have a two on one on the counter, but picks out Virgil van Dijk.

Mikel Arteta falls back into his chair in frustration.

Time is ticking away, Arsenal need to step it up and sharpish.

Who can they look to for some inspiration?

Young Kaide Gordon could have put the game to bed but missed the one glorious chance that fell his way.

He makes way for Takumi Minamino.

Meanwhile, Ibrahima Konate is booked for an infringement on the halfway line.

Image source, Getty Images

Phil McNulty
BBC Sport chief football writer at Emirates Stadium

Wide open Carabao Cup semi-final. Arsenal have to go for it but they have to be aware of Liverpool's threat in response. A second goal for Liverpool would surely kill this off but The Gunners are being urged forward by their fans and this is still in the balance.

What a cross from the best crosser in the game as Trent Alexander-Arnold swings in another sumptuous delivery but no yellow shirt can get on the end of it.

Chris Sutton
Former Premier League striker on BBC Radio 5 Live

The Konate header was a good header, but he was under pressure. The Gordon one was a big opportunity that Liverpool should taken. You wonder if they will pay for those misses.

On the hour mark, Gabriel Martinelli swings in a corner which Caoimhin Kelleher punches unconvincingly, but Emile Smith Rowe volleys his shot over.

Liverpool come close to doubling their lead.

Sub Ibrahima Konate's towering header rattles the foot of the post.

Aaron Ramsdale keeps out Jordan Henderson's follow up but the Liverpool skipper is offside.

Arsenal are hanging on here.