Paul Walker: There is so much cheating in football - fouling, tugging shirts. I don't understand why diving is a big deal.

Daniel Rajan: Diving is the most overblown 'epidemic' - agreed it's not good but talk of it 'killing the beautiful game' etc is hyperbolic.

Mike Rono: Garth Crooks, take a chill pill man!

Join the conversation using #bbcfootball, external on Twitter, send a text to 81111 (UK only), or post a comment on the BBC Sport Facebook, external or Google+, external page.

Arsenal are on course to win their sixth straight game against Newcastle. They've scored in the second half in each of the previous five.

Former Newcastle defender John Anderson
BBC Radio Newcastle at the Emirates Stadium

Image source, Getty Images

"Newcastle have had a bit of good fortune - the second goal should have stood (see 17:46), and at 2-0 down the game is totally different. But as we have seen in the past, if a team has had the majority of the play and should be more than a goal ahead, that can come back to haunt you. Newcastle are still in this, but they are going to have to be much better in the second half."

Let's combine everyone's ideas there and make all referees speak to Garth Crooks after the games on a Saturday afternoon. That would sort it out.

Andy in Bishops Stortford: Going back to the diving incidents. Would it not make sense to interview the refs after the game for them to explain their decisions? It would be interesting to see what they had to say.

Jim from Polegate: It's all cheating and should be punished by yellow card every time.

Kevin in Hornchurch: We need a sin bin for pathetic divers, so they get a 15-minute period sitting on stool in front of opposing teams' fans. That would stop it, but be lots of fun in the meantime. Embarrass the jokers. It's just really doing football no favours at all.

Join the conversation using #bbcfootball, external on Twitter, send a text to 81111 (UK only), or post a comment on the BBC Sport Facebook, external or Google+, external page.

Robbie Savage
606 phone-in on BBC Radio 5 live

"Gary Cahill did get away with it. He was booked earlier for a bad tackle. He then should have picked up a second yellow for simulation. Adam Johnson too at Sunderland, that was more simulation. It just has to stop."

Former Stoke and Tottenham striker Garth Crooks
Final Score

"Jose Mourinho said other clubs seem to be diving. That's a justification for your team doing it, is it? Today we're talking about your team, Jose. If he's using what other teams do as a defence for his team then I'm not having it.

"Jose is wrong about Willian not simulating because Chris Foy booked him. And Jose's wrong about Gary Cahill, because he dived."

Robbie Savage
606 phone-in on BBC Radio 5 live

"Is diving part and parcel of the game? When is it going to stop, because we're seeing more and more of it. I'd like referees to come out after the game and explain what they do, but it's simply not going to happen. And look at Adam Johnson for Sunderland. He went over, but he won a penalty for his team."

Image source, Reuters

Away from Arsenal, the main talking point this afternoon has been diving. Gary Cahill appeared fortunate not to be sent off for a second booking when he went down easily for Chelsea. Here's what our pundits thought...

Image source, Reuters

A half which started brightly but rather fizzled out, Should Arsenal be 2-0 up? Should both sides have had a penalty?

Former Newcastle defender John Anderson
BBC Radio Newcastle at the Emirates Stadium

Image source, Getty Images

"Nothing has stuck for Newcastle when they have knocked the ball up there. Papiss Cisse's touch has not been great at all - he's looked off balance and has mis-controlled and even fallen over the ball on occasions."

End-to-end stuff now as Newcastle keep the ball nicely, but twice they don't quite find Papiss Cisse with the killer pass.

Good pace from Paul Dummett to go stride for stride with Alexis Sanchez, but he does eventually foul the Chile forward. Was that actually inside the box?! Very, very tight. Free-kick given which comes to nothing.

West Brom keeper Ben Foster:, external One of our lads had this lump on his foot after the game as well...!

Image source, @BenFoster

Ouch!

Hector Bellerin - who has had a fine start to the game attacking-wise - goes into the book for a rash challenge as Newcastle continue to threaten an equaliser. Good few minutes from the Magpies.

Former Newcastle defender John Anderson
BBC Radio Newcastle at the Emirates Stadium

"Arsenal always give you an opportunity, but it was only half a chance to be fair to Papiss Cisse. He did everything he had to do. The goalkeeper makes a great first save (18:03) but he knew nothing about the second one."

Mike Hall: Olivier Giroud has come back into top form like a Eurostar train, and will get a hat-trick today. Fact.

Adebayo Sammy: Hector Bellerin is having a great game at the right-back. He is going to be some player.

Rasanga: Certainties in life - half of the Arsenal squad are injured, the opposition goalkeeper is man of the match and the referee has a shocker! Standard.

Join the conversation using #bbcfootball, external on Twitter, send a text to 81111 (UK only), or post a comment on the BBC Sport Facebook, external or Google+, external page.

Image source, EPA

Oh and Newcastle almost level now! Another free-kick is whipped in by Jack Colback, Yoan Gouffran gets a strong header in, Wojciech Szczesny parries it out and then blocks the follow up too. Arsenal have been totally in control but suddenly look shaky at the back.

Former Welsh international John Hartson
Final Score

"More should be done about diving, because it's happening a lot. The authorities are not clamping down on it strongly enough."

Former Stoke and Tottenham striker Garth Crooks
Final Score

"I'm getting sick and tired of hearing managers coming to post-match interviews saying they haven't seen an incident. There are cameras and monitors everywhere. I don't think a manager should give us any nonsense about not having seen it - they should come and speak to the nation having seen everything."