Postpublished at 90+3 mins
Aleksandar Kolarov almost makes it four but his free-kick is touched wide by Boaz Myhill. Seconds to go.
Summary
Toure shot deflected in by Silva
Toure curls in superb second from 20 yards
Kompany heads in from near-post corner
£49m Sterling makes Man City debut
West Brom debuts for Lambert, Chester, McClean
Postpublished at 90+3 mins
INJURY TIMEpublished at 90+1 mins
Three minutes of injury time added on, one of them done already.
get involved Get Involvedpublished at 21:47 British Summer Time 10 August 2015
Postpublished at 89 mins
Image source, EPAManchester City striker Sergio Aguero almost makes it 4-0 but his effort is saved by the feet of Boaz Myhill.
David Silva wants a penalty now but referee not interested.
Postpublished at 88 mins
Victor Anichebe, who will surely be West Brom's fourth choice striker once Salomon Rondon becomes eligible, has a shot but it's straight at Joe Hart.
Postpublished at 21:42 British Summer Time 10 August 2015
If Manchester City are selling Edin Dzeko to Roma for £14m, by the way, that's a bargain, isn't it? Surely Arsenal could do with the Bosnian striker?
get involved Get Involvedpublished at 21:41 British Summer Time 10 August 2015
Postpublished at 84 mins
West Brom striker Victor Anichebe tries to turn Vincent Kompany on the edge of the box but the defender gets a touch onto it and Chris Brunt mis-kicks wide from the loose ball.
Postpublished at 83 mins
West Brom winger Callum McManaman wanted a penalty after being challenged for a header by Eliaquim Mangala. Would have been one of the weakest penalty awards ever.
Postpublished at 82 mins
Is it too early for 'as it stands' table chat? Well if not Manchester City are top and West Brom are bottom. Only 37 games to turn this round for the Baggies.
SUBSTITUTIONpublished at 80 mins
Image source, EPAManchester City make a change straight after that with two-goal hero Yaya Toure coming off for Martín Demichelis, who is usually a defender but might sit in midfield here.
SUBSTITUTIONpublished at 80 mins
Callum McManaman, who I'd almost forgotten was at West Brom, is coming on for Saido Berahino.
Postpublished at 78 mins
Image source, ReutersSaido Berahino lays the ball off to Chris Brunt, whose left-wing cross is headed straight at Joe Hart by James Morrison. The Scotland international could have done better there.
SUBSTITUTIONpublished at 75 mins
Image source, Getty ImagesManchester City debutant Raheem Sterling comes off and is replaced by Samir Nasri. Sterling missed a couple of chances and was fairly quiet today but I don't think he had a bad game.
West Brom striker Rickie Lambert comes off to a good reception, he's replaced by Victor Anichebe.
Postpublished at 73 mins
West Brom having a decent spell of corners now. Fernandinho and Saido Berahino are chasing each other around Joe Hart like a playground game. The latest corner comes to nothing.
Postpublished at 21:29 British Summer Time 10 August 2015
get involved Get Involvedpublished at 21:28 British Summer Time 10 August 2015
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Richard Atherton, Northwich: After Man City's third goal, all Arsenal fans can now breathe a huge sigh of relief for moving up from the bottom of the table. Well done boys.
Postpublished at 21:27 British Summer Time 10 August 2015
Image source, PAA fan of omens? Well Manchester City have won the Premier League title twice - on both those seasons they won the opening game 4-0 (v Swansea in 2011-12 and v Newcastle in 2013-14).
You wouldn't put it past them today. And you wouldn't put the title past them this season based on this performance.
Postpublished at 69 mins
Image source, Getty ImagesBaggies midfielder Craig Gardner has a go from 25 yards but it's well over. As is this game.
Postpublished at 68 mins
West Brom defender Craig Dawson gets his head onto an attacking corner, which Aleksandar Kolarov deflects out for another corner. But that comes to nothing.
Hard to see a way back for them even if they did manage to score now.