Welcome to our live text commentary of Sunderland's Premier League match against West Ham at the Stadium of Light.

Collins is very sharp as he steps in to beat Fletcher to a loose ball, and that's very good defending.

West Ham are slowly feeling their way into the match, and they are beginning to hold the ball much better.

McClean is much quicker to a loose ball than Diarra, and he wins a free kick for his side in the West Ham half.

STAT: Only Gerhard Tremmel (81%) has a better saves to shots ratio in the Premier League than Jussi Jaaskelainen this season (77%).

Cole is dropping deeper and deeper as he looks to link up the play for his side, but it's not going the visitors' way.

That was the first real foray into the hosts' half from West Ham, who have been comprehensively outplayed so far.

Jarvis wriggles away from Bramble as he gets a shot away from inside the Sunderland box, but it's tame and straight at Mignolet!

O'Shea continues to pick out Sessegnon down the left at every opportunity to distribute the ball out from the back.

STAT: Sunderland have won just three of their last 14 Premier League games at the Stadium of Light (W3 D6 L5).

It really was a quite brilliant strike from Larsson, who just decided to let fly after taking the ball down.

More pressure from Sunderland as they pin West Ham in with a series of corners, and Allardyce must be rather concerned by his side's start.

GOAL! What a goal from Seb Larsson, who unleashes a stunning strike from the edge of the West Ham box, with the ball fizzing into the top corner to leave Jaaskelainen with no chance whatsoever! Sunderland are deservedly in front early on.

Sunderland continue to pile on the pressure, and the hosts are utterly dominant.

Chance! A corner is whipped over by Johnson from the left, and Fletcher heads over the crossbar from inside the West Ham box - he really should have hit the target, with what was a free header!

Sessegnon again has some joy down the left as he skips past Demel, but his cross is far too deep.

West Ham are just trying to keep up at the moment, and they cannot get out of their own half.

It's been a fast start to the match from Sunderland, and the visitors continue to be boxed into their half.

Sunderland have enjoyed most of the early play in this first half, with West Ham yet to really get the ball down.

Martin O’Neill’s Premier League record against Sam Allardyce as opposition coaches is W1 D2 L3). Those six matchups have seen four different fixtures (Aston Villa v Blackburn, Newcastle and Bolton and Sunderland v West Ham).

It looks at first glance as though West Ham are in a 4-5-1 formation, with Carlton Cole up front on his own, Joe Cole on the right, and Matt Jarvis on the left.

Sessegnon is looking very dangerous early on, and he darts down the left flank at pace before cutting the ball back for Vaughan, who drives a low shot wide from the edge of the West Ham box!