FULL TIME. West Ham 2 Liverpool 3.
West Ham are playing incredibly high now and Sterling nearly sets himself free before Collins gets a crucial touch to clear the ball.
A magical run from Shelvey ends with the midfielder going down in the box, but replays show it was a terrific tackle by Reid where the defender won the ball. The Liverpool bench are furious as both teams continue to press for a late goal.
Five additional minutes are to be played.
West Ham win a free-kick 25 yards and Maiga's effort is on the embarrassing side of the "poor" scale as he blasts the ball way, way over the bar. A penny for Big Sam's thoughts there.
A wonderful passage of play sees West Ham caught out on the counter attack, with Sterling knocking the ball past Collins before Jaaskelainen charges out of his box to make a crucial clearance!
Expert play from Nolan keeps a West Ham attack alive, with Maiga challenging Reina in the air as the Reds keeper does enough to punch clear.
Taylor comes off with Maiga his late replacement.
Liverpool hover in West Ham's final third, but Downing makes a poor choice when he ends a good spell of possession by firing wildly over.
Sterling collects the ball from Allen but persistence from Taylor ensures the ball does not reach the penalty area as West Ham remain on the defensive for the time being
Another injury worry for West Ham as Cole stays down after a collision with Skrtel. He is back to his feet shortly after though and it doesn't appear as if he will need to come off.
Liverpool have completely transformed over the last 20 minutes and they're still bossing things as J Cole picks his target but he can only find the fans behind goal.
It's an incredible slice of luck but Liverpool won't care in the slightest. Shelvey's close-range flick takes a huge deflection off Collins and ends up looping over the helpless Jaaskelainen to give Liverpool the lead again!
GOAL FOR LIVERPOOL - SHELVEY!
Johnson shows great intent to cut to the byline, but in playing back to Gerrard, a couple of deflections end up carrying the ball into Jaaskelainen's hands.
Lovely stuff from Liverpool, as Sterling's first-time ball into Cole is completed by a classy finish into the far corner from the super-sub. 2-2 and what a finale we could be in for here!
GOAL FOR LIVERPOOL - JOE COLE!
Taylor looks for Cole with a rather innocuous looking ball, but the striker wins the flick-on and Skrtel is at full stretch to prevent Jarvis being presented with a view on goal.
Diame, who has been such a key cog in West Ham's game, is stretchered off and Tomkins comes on in his place.
Worrying scenes for West Ham as Diame pulls up clutching his hamstring during a run down the right and the medics are immediately calling for a stretcher.
Lucas is replaced by Henderson in the second Reds change of the game.
Great chance for the Reds. Downing's delivery is top drawer but Shelvey fails to catch the ball cleanly and aims a poor header wide from close range.
Reina is the next to be called into action as Jarvis squirms past Johnson before finding the head of Taylor who can only nod the ball into the Reds keeper's path.
West Ham continue to defend stoically, but credit to Liverpool who are really starting to push with some intent for an equaliser.
Allen dummies for Sterling and the forward draws a brilliant save from Jaaskelainen, who tips the ball over the top to concede a corner. Lovely work in the build-up from Downing.
It takes a powerful Agger run to create a chance for the Reds, with the Dane making a surging charge forward before unleashing a fierce effort that travels well over the bar.
Downing aims a pointless ball into towards Shelvey, who had three men around him, and Liverpool continue to look mystified as to how to break down this stubborn West Ham defence.
Taylor finds a yard of space from Noble's ball, but credit to Downing, he does well to get a tackle in, with Johnson then getting lucky to see his poor clearance end up going for a goal-kick off Cole.
Diame pounces to cause Liverpool's midfield more problems, with the West Ham man becoming an increasingly influential force on this match.
Cole breaks away as Agger gives chase. He fires a powerful drive across goal and a timely sliding challenge from Skrtel forces the ball behind.
At the other end, Collins makes an immense tackle to cut off the charging run of Johnson, with Liverpool looking increasingly uninspired when venturing forward.
Collins gets it all wrong from the delivery, heading with pace and seeing his wild effort land near the corner flag in the end.
Allen and Cole combine as Liverpool move forward. The imposing Diame slides in to intercept though and West Ham break with Jarvis' cross clipping Skrtel and going behind for a corner.
Jarvis watches Skrtel slip and takes the ball past him, before Nolan's deflected shot eventually lands back in Jarvis' path. Skrtel then recovers and earns the Reds a goal-kick.
Johnson is bested by Cole in a battle near the byline, but the referee blows his whistle for a foul by Nolan and Liverpool win a free-kick.
J Cole's chip into Gerrard is read by Reid, but the little maestro has looked nifty since coming on to the pitch and Liverpool could really do with playing him in as much as possible.
O'Brien keeps the ball alive near the touchline, before Jarvis' right-footed ball in is met by the head of Skrtel. West Ham have started where they left off as they continue to impress since going behind.
Taylor feeds the ball in from the right, but the mountainous Agger heads away before Gerrard steps in to make the final clearance.
Sterling halts his run just as Shelvey played him in, with Collins clearing into the path of Cole as West Ham look to respond with an attack of their own.
Diame hobbles off after taking a clattering from Sterling, an impressive feat given the respective sizes of both men.
West Ham get the game restarted.
The Hammers make a change at the break as Demel is replaced by McCartney.
Gary Enright writes: "Been a Liverpool fan for thirty years, and this team apart from a few very good individuals is very poor and the real red fans will know who I am talking about. Brendan Rodgers has no idea and I am sorry to say this but we have become just a mediocre team."
HALF TIME. West Ham 2 Liverpool 1.
Downing delivers a curling ball into the box and credit to Shelvey, he does well to beat Reid and Collins in the air but he can only direct his effort wide.
Jaaskelainen gets his palms to a Liverpool corner, and with so much action occuring in the first half it's a shame that half time is just around the corner - it's been a tremendous game so far.
Three minutes of added time to be played.
Good chance for Liverpool as Downing gets down the left before finding Shelvey, with the makshift striker scuffing his chance which lands wide.
West Ham have turned the game around as a wonderful Jarvis cross sees Gerrard caught out of position to head clear and he ends up driving the ball into his own net. What a remarkable comeback from the Hammers!
GOAL FOR WEST HAM - GERRARD OWN GOAL!
Allen goes long in his bid to find Gerrard, but he is marshalled all the way by Reid as Jaaskelainen hurries out his goal to deny the Reds captain making contact.
Between Collins and Jarvis, West Ham clear their lines, and Jarvis ends up embarking on a wonderful run down the left before a close-range header from Taylor flies over the bar. Brilliant chance for West Ham.
A poor Reid clearance isn't capitalised on by Allen, but Liverpool do win a corner which sees the arrival of big guns Skrtel and Agger.
Noble adds to his reputation as being a throughly reliable penalty taker as he slots home coolly to draw the Hammers level. Game on again and the impetus is all coming from West Ham at the moment.
GOAL FOR WEST HAM - NOBLE!
Allen is penalised for a handball to block Diame's shot and Noble steps up to try and get his team the equaliser.
Penalty to West Ham!
Taylor's tame effort from that free-kick provides no real test for Reina who comfortably gathers, and that will go down as a wasted chance for the hosts.
Diame leads West Ham away from that ball in and a rash challenge from Gerrard on the retreat earns the Reds captain a yellow card.
Great work from J Cole in a tight space, as the midfielder sets himself up to shoot before O'Brien comes across to cover and concede a corner.
Yellow card for Shelvey as the midfielder makes one too many fouls, his latest indiscretion a tug on Diame.
Skrtel is a tower of strength for Liverpool as he holds off the sizable threat of C Cole before regaining his composure to calmly play Liverpool clear.
Free-kick to West Ham for a Shelvey foul on Noble, as the hosts start to generate some momentum going forward. C Cole again threatens from Jarvis' ball in, but Skrtel is alert and hacks away the threat.
Johnson holds off Diame, but J Cole's first touch is a poor clearance that is met by Noble. Jarvis then finds room to cross with C Cole's stab on goal taking a huge deflection off Agger which sees Liverpool clear under slightly desperate circumstances.
Enrique is forced off and Cole takes to the field.
Cole looks to be coming on for Liverpool as he receives instructions on the touchline, with a Reds player surely carrying an injury.
Lovely control from Cole to collect Demel's long ball. Taylor then rifles a fierce delivery across the penalty area but Reina reads it all the way and makes a routine collection in the end.
Jarvis collects Lucas' weak pass and West Ham are away. Jarvis delivers but Reina does enough to clear away under severe pressure from Cole and Nolan.
Cole comes close to finding Taylor's run, who sifted in behind Enrique, but the Spaniard closes him down before Taylor concedes a free-kick trying to retrieve the ball from Agger.
Johnson is a man possessed right now, skipping past Diame with ease before playing in Sterling. Noble makes a sterling (no pun intended) tackle on Shelvey near the touchline moments later and West Ham end up winning a throw-in.
West Ham remain combative but all the momentum is with Liverpool at the moment, such is their promise they carry when going forward. Demel makes some progress down the right though, and Agger has to be hand to clear his ball into the box.
Johnson is tormenting Jarvis and O'Brien. He cuts inside again but West Ham remain vigilant and eventually force him back, before Diame intercepts and draws a foul from Lucas.
Lucas, who has started superbly, links up play in the centre of the park as Liverpool look very comfortable in possession for the moment.
Liverpool keep charge of the ball before Johnson shakes off Jarvis and finds Sterling. The forward takes aim but drags his shot wide from a brilliant position and Liverpool should really be 2-0 up.
Liverpool are firing on all cylinders early on, as Johnson feigns to hit before Gerrard has a pop which takes a deflection. When the ball then lands with Sterling, his effort goes behind for a goal-kick.
What a goal! Johnson cuts in from the right, skips away from O'Brien to find a yard before unleashing a rasping drive that lands firmly in the top corner. A stunning hit and what a way to begin the match!
GOAL FOR LIVERPOOL - JOHNSON!
Jarvis looks to get the ball in early but Taylor is too far away from meeting his switched delivery and in the end the ball ends up running out harmlessly for a goal-kick.
Reina bosses his area and emerges through a cluster of bodies to claim the corner confidently.
Nolan is played in quickly from a free-kick by Diame, and the retreating Shlevey does well to get his head in the way to concede another corner.
Jarvis' delivery is helped away by Lucas, but only into the path of Diame who takes aim and sees a deflection take his shot out of harm's way for a corner.
Jarvis crosses in, but Agger is positioned well to rid the danger for Liverpool, with O'Brien them conceding a foul on Johnson to bring a halt to West Ham's attack.
Reina looks for Downing's run down the right, but O'Brien marks him well and ensures the ball runs straight to Jaaskelainen.
A scrappy period eventually settles down and Liverpool look to surge forward before Shelvey fails to meet Downing's pass and Diame takes over.
Liverpool start brightly as Shelvey and Gerrard combine before the Reds captain's strike goes for a corner. Allen crosses in but Collins gets his head in to clear.
Liverpool kick off and get the game underway.
The players are out on the field exchanging the traditional pre-match handshakes are we're minutes away from kick-off at Upton Park.
West Ham are 19/10 to win this Super Sunday clash, with the draw 23/10 and Liverpool 7/5. With Luis Suarez suspended, we've enhanced Steven Gerrard to open the scoring for the Reds to 8/1.
Jack McEvoy isn't best impressed with Liverpool's selection, writing: "Liverpool, struggling to score all season and now do not even have a striker on the pitch. Madness!"
Liverpool captain Steven Gerrard returns from illness to skipper the Reds. Gerrard replaces Jordan Henderson in midfield with Jonjo Shelvey named in place of the suspended Luis Suarez. Manager Brendan Rodgers makes three further changes from the Europa League win in Udinese with Daniel Agger, Lucas and Raheem Sterling replacing Jamie Carragher, Nuri Sahin and Suso. West Ham boss Sam Allardyce named Mohamed Diame and Matthew Taylor in his starting line-up after both made an impact from the bench in the win over Chelsea last weekend.
West Ham team: Jaaskelainen, Reid, Collins, Demel, O'Brien, Noble, Nolan, Diame, Jarvis, Taylor, Cole. Subs: Spiegel, McCartney, Tomkins, Maiga, Spence, O'Neil, Moncur
Liverpool team: Reina, Johnson, Enrique, Skrtel, Agger, Lucas, Allen, Gerrard, Sterling, Downing, Shelvey. Subs Jones, Cole, Henderson, Coates, Carragher, Suso, Wisdom.
Good afternoon one and all and welcome to Upton Park for live coverage of West Ham v Liverpool in the Premier League. The Manchester derby has kicked off a super Sunday of action and the action carries on this afternoon. The teams will appear here shortly, in the meantime you can direct any messages to firstname.lastname@example.org
The match kicks off at 1600.