James:  Wenger made the wrong team selection putting Walcott up front, says Chris Sutton... 

Faddi S:  What a pass by Ozil for Walcott's goal. Vision.

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Kevin de Bruyne has a chance to run at Palace down the right. He checks his run inside, lays off to Jesus Navas and the Spain winger chips the ball just over the bar from the edge of the area.

What a chance! Jay Rodriguez should have Southampton again. Dusan Tadic with a peach of a cross from the right, J-Rod's movement is first class to get across his defender, the connection is good - he just puts a header three yards wide. Almost. 

Sergio Aguero is sat on the Manchester City bench with his knee raised and lots of cream smothered across it. It looks very sore, but the striker is waiting to get changed. I don't blame him... it's hard to take your eyes off this game.

Image source, Reuters

Remember the noise about Cristiano Ronaldo failing to score in Real Madrid's first two La Liga games?

The former Manchester United player has hammered a 13-minute first half hat-trick away to Espanyol. Karim Benzema has also netted for Rafael Benitez's side, who lead 4-0 with 10 minutes of the half remaining.

Elsewhere in Europe, German champions Bayern Munich are losing at home to Augsburg in the Bundesliga.

Jermaine Jenas
Former England midfielder on Final Score

"That is the type of goal Theo Walcott scores from the right wing, when he's running on to the ball cutting inside from deep. That isn't a problem for him. It's when he's playing around the box that the problems come."

Image source, PA

Chris Sutton
Former Blackburn striker on Final Score

"A wonderful ball from Mesut Ozil and Theo Walcott's dangerous when he can run into the space behind a defence. And it was an excellent, composed finish."

Watford are mainly attacking down the left so far, through Ikechi Anya and Jurado, but the Hornets are still waiting for their first attempt on target.  

Image source, BBC/Opta

Joselu, who Stoke manager Mark Hughes has said is a cross between Mame Diouf and Peter Crouch, rifles in a low shot which bounces off Petr Cech and to safety. That was more Paul Scholes than Diouf or Crouch.

Do West Brom miss Saido Berahino? Yes.

They look a bit short of attacking ideas. Southampton look comfortable, Virgil Van Dijk has done OK so far on his Premier League debut.

That's the best of Wes Hoolahan. Drifting off the back of the midfield into space, a lovely slipped pass down the side and Cameron Jerome is in!

Hit it across the keeper and it's a goal. He goes near post and drags it into the side-netting. Massive chance.  

What a tackle! Bournemouth put together a neat move, the ball is lifted over the top and a pink shirt is there to meet it on the volley - bu Robbie Brady slides in to get there with a great challenge.

Wes Hoolahan then goes into the book. That's four bookings already. Tasty.

Chris Sutton
Former Blackburn striker on Final Score

"It's been an open game, end-to-end, but losing Sergio Aguero is a massive blow for City. In pre-season, I'd have kept Edin Dzeko and sold Wilfried Bony. I like Dzeko.

"It was a dreadful tackle on Aguero, by the way."

Clive Allen
BBC Radio 5 live at Selhurst Park

"First of all it was a poor challenge by Yaya Toure, he's lucky to get only a yellow because it was reckless.

"But then it all kicked off on the touchline. Manuel Pellegrini was pointing to Alan Pardew to stay in his own technical area. This game is simmering now. There have been confrontations all over the pitch."

In the first 28 minutes, Arsenal have had nine shots on goal - five of which have been saved by Jack Butland. Stoke? 0.

You know what's coming next, don't you?

1-0 to Stoke?

Watford looking well on top at the moment. The home side are pushing hard as Jonjo Shelvey launches himself into a tasty tackle in midfield. Steady. 

It's getting very heated at Selhurst Park where Yaya Toure is booked and then Manuel Pellegrini clashes with Alan Pardew. Pellegrini is very animated.

Chris Brunt with a gem of a corner, wonderful ball in and Craig Dawson is there for West Brom - but he heads over.

Fantastic ball in.