Pat Nevin
BBC Radio 5 live

"What a shame, really. Chelsea have been getting more and more into this game and the attitudes of both sets of players had been excellent, with really good work-rates and energy.

"Then right at the end the dynamic of this game has changed. We might now not get as good second half. We will pour over that sending off - did Gabriel deserve his red card? Let's be clear, Costa is no angel."

You can listen to live commentary of this fixture via the Live Coverage tab at the top of this page.

Dan J Pinchy:  Rather than trading petty insults like spoilt brats Jose Mourinho & Arsene Wenger should put up or shut up... Half time pillow fight in centre circle.

We're all waiting with bated breath for Jose and Arsene to emerge from the tunnel, bare-chested and each whirling a king size goose feather and down.

Phil McNulty
BBC Sport chief football writer

Bizarre end to the half with Gabriel sent off at the conclusion of a lengthy spat with Diego Costa. Arsenal might say, with a lot of justification, that Costa started all that with three straight hands into the face of Arsenal defender Laurent Koscielny - surely he should be off as well?

Controversy! Diego Costa stands behind Gabriel as Petr Cech prepares to take a goal-kick and the Chelsea striker reacts angrily to what he seems to suggest is a stamp on his foot. Referee Mike Dean takes his time to assess the situation and then sends off the Arsenal defender.

Gabriel is angry, Arsene Wenger is furious. Diego Costa looks quite satisfied with the outcome. Replays do little to clear up if there was a stamp or not.

Touch paper lit. Bang on half-time.

You can follow this game via our live text commentary here.

Eyobele:  When was the last time we had 7 Spanish in a London derby?  

Stavros Makrozachopo:  I'm watching them both right now and Forest v Middlesbrough is miles better than this Chelsea v Arsenal derby  

John Pierce:  Arsenal too lightweight, Chelsea lacking confidence, equals snore-fest.  

Newcastle are bottom of the Premier League, but they're topping the top-flight sartorial standings...

Pat Nevin
BBC Radio 5 live

Image source, PA

"Wenger almost tried to dummy his way out of the handshake with Mourinho before the start, but was just a little too late!"

You can listen to live commentary of this fixture via the Live Coverage tab at the top of this page.

A belting first half at the City Ground comes to an end with Middlesbrough leading 2-1. I suspect it won't finish like that, though. There you go... cursed it right there.

Danny Murphy
Former England midfielder

Speaking of injuries, Luke Shaw suffered a horror leg snap during Manchester United's defeat by PSV midweek...

On Luke Shaw's major injury:

"He is a wonderful talent. He is going to be a great player in the future.

As an injured player, you have to make sure you still remain involved and don't just sit on the sidelines".  

Earlier, we brought you news that Liverpool's Jordan Henderson would be out for six to eight weeks after breaking a bone in his foot during training...

Our vote is now live. It is on the right hand side of this page. Just over there on desktops or in the vote tab on tablets. See it? Cracking. The question is: which team will finish highest in the Premier League? Get stuck in.

The vote will close at 16:50 BST. Full terms &conditions are available here.

Pat Nevin
BBC Radio 5 live

"It was frantic to begin with but now this game has settled into what we expected. And you have to say, Arsenal look the more comfortable side when they're on the ball. But only just.

"Walcott is looking really lively - playing on the shoulders of the defenders and trying to use his pace at every opportunity. I completely understand why he prefers to play as a centre-forward rather than wide on the right, because he's always involved."

You can listen to live commentary of this fixture via the Live Coverage tab at the top of this page.