Eddie Nketiah almost conjures up something for Arsenal after being found by fellow sub Reiss Nelson. The forward fires an angled shot that flies across goal and past the far post.

We're into the last 10 minutes. Fair play to the Arsenal fans, who have been serenading their side for much of this half despite the pain this defeat will inflict.

Kevin de Bruyne departs to a standing ovation. He has been wonderful tonight.

Julian Alvarez replaces him.

Arsenal make two more substitutions - Reiss Nelson and Eddie Nketiah are on for Gabriel Jesus and Bukayo Saka.

Nope.

Bukayo Saka takes a few quick steps and then curls the free-kick over the bar.

Arsenal have a free-kick near the edge of the City box after handball by Rodri. Can they get at least a consolation here?

Clearly, this is great for City and sickening for Arsenal, but it's also a shame for us neutrals. The billing had this as a blood and thunder title battle between the best two sides in the league but it's been too one-sided to be gripping.

Party time at a rocking City Ground.

Depeche Mode's Just Can't Get Enough provides the perfect soundtrack.

You can barely hear the television summarisers. Incredible noise.

Image source, Reuters

A booking for Thomas Partey and Jack Grealish. It is deserved too. Grealish shoved Partey after the Arsenal midfielder had been tackled. Partey shoved him back.

All over as David Moyes goes straight to the referee about that late non-handball decision.

Liverpool get a big three points in their European bid though.

Image source, Reuters

Boos at the final whistle as Chelsea fall to a fifth consecutive defeat under Frank Lampard.

Great win for Brentford.

Image source, Reuters

It has been threatening to boil over at various stages in this contest. It's kicked off again now with Thomas Partey and Jack Grealish squaring up.

James Collins
Former West Ham defender on BBC Radio 5 Live

The whole bench is on its feet. No one can believe what has gone on. It's a stonewall penalty.

David Moyes is absolutely beside himself.

After 106 minutes, the whistle goes and Forest secure a potentially-priceless three points.

They're out of the relegation zone!

To make it even sweeter, East Midlands rivals Leicester have dropped into the bottom three at their expense.

Deep into the four minutes added on.

Kevin Nolan shows David Moyes a replay of that non-penalty call on the bench. They are raging.

Into three minutes of injury time.

Hmmm, just seen a replay and I see why West Ham are furious. David Moyes will have a lot to say afterwards. Thiago definitely had his arm out and Danny Ings' effort hit it. Hmmmmmmmmmmmm.

A change for both sides.

FA Cup hat-trick scorer Riyad Mahrez is on for Ilkay Gundogan for City.

Arsenal send on Emile Smith Rowe for Martin Odegaard.

Oh, he's offside. Deniz Undav sees the flag wafting in the air when he looks up after grabbing the ball. But it's going to VAR...

Not sure what they're looking at. Seems clear as day.

Yep, he's offside.

Shay Given
Former Manchester City goalkeeper on BBC Radio 5 Live

This is not the Chelsea of old.

They seem deflated with so much going on off the pitch too. Players can use that as an excuse. If Mauricio Pochettino is up in the stands, what is he thinking?