- West Ham win at Arsenal just three days after a weakened side lost 4-3 on aggregate to Astra Giurgiu in Romania
- Cheikhou Kouyate and Mauro Zarate efforts secure perfect Premier League start for Slaven Bilic
- Petr Cech partially culpable for both goals at the Emirates Stadium
- Steve McClaren draws his first competitive game in charge at Newcastle
- Shane Long earns a point for Southampton after Papiss Cisse and Georginio Wijnaldum cancelled out Graziano Pelle's early goal
A disastrous start to the new Premier League season from Arsenal. They would have been supremely confident of getting off to a flyer here following their Community Shield triumph at Wembley last weekend, but two instances of terribly sub-standard defending has cost them dearly along with a lack of superior cutting edge.
A difficult afternoon for Cech, who many have tipped to make the difference between the Gunners just finishing in the top four and consistently challenging for the title.
Bilic was strongly criticised for making sweeping changes to his side for their Europa League qualifying defeat in Romania on Thursday, but this result has gone some way to justifying that controversial selection.
West Ham were combative and boasted the two best players on the pitch in the form of impressive 16-year-old defender Oxford and new signing Payet. What a win to kick off their domestic campaign.
As for Newcastle, McClaren will inevitably be pleased with a point from a difficult fixture but may feel understandably aggrieved that his side could not hold on for all three after they worked hard to reverse that early 1-0 deficit. Signs of an early Europa League hangover for Southampton, you wonder.
That is it for this particular blog, but please click here to follow live coverage of Liverpool's trip to Stoke.
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Arsenal 0-2 West Ham
Newcastle 2-2 Southampton
A couple of late efforts from Saido Mane for Southampton but the Senegalese international cannot find a winner.
Adrian with two confident saves from Sanchez at Arsenal.
An early sighter for Maiga is held by Cech. Five minutes of stoppage time for West Ham to negotiate and claim a morale-boosting victory.
Kevin Nolan has replaced Oxford, while Modibo Maiga is on for Sakho.
Both Giroud and Tomkins were ok to continue after that clash. Arsenal's closest chances in the last few minutes came when Oxlade-Chamberlain hit the side netting after Walcott's shot was blocked by Reid. Adrian has also saved from Cazorla.
Cech also had to be alert to keep out Sakho. A little under five minutes remaining for the hosts to salvage something from this.
A timely intervention from substitute Long as he heads home Dusan Tadic's cross to restore parity for Southampton.
Goal: Newcastle 2-2 Southampton (Shane Long)
Concern for Giroud and Tomkins here after a nasty clash of heads. Play rightly stopped immediately.
Cazorla floats in a free-kick for Giroud but his header is tame and comfortably claimed by Adrian.
With his team starting down the barrel of a wretched defeat, Wenger throws on Sanchez for Debuchy. He would not have wanted to use the Chilean today given his lack of a proper break this summer.
Monreal picks up Arsenal's first caution for a foul on Noble.
He does not look too happy about it, but having scored West Ham's second goal Zarate now walks off to be replaced by Matt Jarvis.
This is rapidly turning into an afternoon to forget for Cech and Arsenal as Zarate surprisingly doubles West Ham's advantage.
There appeared to be very little danger as Oxlade-Chamberlain looked to dribble the ball forward, but he loses possession just outside the penalty area and that allows Zarate, in acres of space, to shoot first time from 25 yards. The attempt catches Cech cold at his near post.
Wenger responds by introducing Walcott in place of Coquelin.
Goal: Arsenal 0-2 West Ham (Mauro Zarate)
Coquelin sweeps the ball forward for Monreal, who does well to find Ozil with a pass down the line. The German's cross is swift and Giroud hits the side netting on the turn.
Arsenal's number 12 goes close again shortly afterward as a shot is deflected into the arms of Adrian.
Back in North London, Zarate looks wasteful for the Hammers before Adrian almost pushes a Giroud cross into the path of Ozil.
A frantic start to the second half at St James' Park, where Krul reacts well to keep out an effort from Maya Yoshida before Newcastle debutant Wijnaldum heads home Obertan's cross.
McClaren's side were 1-0 down but now lead.
Goal: Newcastle 2-1 Southampton (Georginio Wijnaldum)
Back underway at both Arsenal and Newcastle.
One change at half-time for Southampton as Curacao international Martina replaces Soares for his Premier League debut.
While Cech will inevitably get saddled with much of the blame for that goal, it is certainly worth mentioning that Kouyate was allowed to drift in totally unmarked to produce his header.
Rotten defending all round from the Gunners.
In amongst the commotion at the Emirates comes news of an equaliser for Newcastle. Cisse is the man who has got it, turning home from a yard out after a cross was deflected into his path.
All square at the half-time whistle there.
Newcastle 1-1 Southampton
Goal: Newcastle 1-1 Southampton (Papiss Cisse)
A perfect end to the half for Bilic's combative West Ham. They have been on the backfoot for long spells, but a good delivery from Payet coupled with Cech's error sees them head in at the break with a slender lead.
The scoreline could be level if it was not for Tomkins' excellent block on Ozil.
Arsenal 0-1 West Ham