My, this is tense!

Fidan Aliti's cross floats close to a rising team-mate in the box but no contact is made.

Arsenal are having to dig in.

West Ham want more.

Manuel Lanzini fires a shot on target but Stefan Tarnovanu dives and saves.

Tomiyasu is going off. Maybe precautionary? You have to hope so for the sake of Arsenal in the Premier League and Japan in the World Cup. Cedric Soares replaces him.

There are four minutes to go.

Takehiro Tomiyasu is down getting treatment, eating into that time.

FCSB are having a real go at trying to find a consolation, but they keep firing shots wide from the edge of the box.

Matt: Academy of Football on full display with West Ham this evening, so many of the youth team on. Great to see!

Nikola Katic is risking a lot as he slides in on Reiss Nelson. He gets a bit of ball and a lot of man, but the ref gives a corner and does not hand out a second booking to the Zurich defender.

The Gunners fail to make anything of the corner, though. The trial continues.

Bledian Krasniqi comes on for Zurich to try and find a late sting.

Oof, Zurich are really jangling some home nerves.

Bohdan Viunnyk lets fly from just outside the box and his effort flies just wide of goal. Aaron Ramsdale at full stretch.

We're creeping towards the last 10 minutes at the Emirates.

It's all a bit more tense than everyone in here was hoping it would be.

Divin Mubama's excellent night is over. He gets hugs from all on the bench as he departs to be replaced by 19-year-old midfielder Kamarai Simon-Swyer.

Ben Johnson is also off. Kaelan Casey, an 18-year-old midfielder, is his replacement.

It must feel a bit like being the teacher on a school residential for David Moyes.

Paul: So used to seeing Xhaka in our team it doesn’t feel right without him. But he’s been amazing for us this season and deserves a break.

Oh, the night nearly got even better for the Hammers!

Oliver Scarles is found in space at the back post from a right-wing cross. He has time to steady himself but can only stroke his shot past the far post.

That would have capped this off.

Martin Odegaard and Takehiro Tomiyasu are on for Arsenal. More experience to see this over the line.

Martin: So great to see #WHUFC playing the youngsters. and them thriving! First team every to win all 6 group games in the #EuropaConferenceLeague.

There are definitely a few nerves around the place. PSV lead 2-0 at Bodo/Glimt, so Arsenal aren't completely home and dry for top spot.

The Gunners need to win or match PSV's result. So a Zurich goal changes everything.

West Ham continue to give their youngsters a glimpse of first-team action.

David Moyes sends on 20-year-old defender Harrison Ashby, 21-year-old midfielder Keenan Appiah-Forson and 19-year-old midfielder Freddie Potts, the son of ex-Hammer Steve Potts.

A sigh of relief around the Emirates!

A shot from the edge of the box draws a good save from Aaron Ramsdale but Adrian Guerrero follows up to fire in.

The flag is up, though. Guerrero was one of three men offside from the initial shot.

A shot across the Gunners' bow.

Sulaimon: So glad to see Bukayo Saka come on, he needs those minutes to get himself ready for the crunch game against Chelsea on Sunday.

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