Final score - West Ham United 1-1 Arsenal

92 mins -
The last chance of the game comes and goes as Ansah heads straight at Spiegel who comfortably gathers. That's it, it ends honours even and despite the late drama, that's probably just about right. The Development Squad have a fortnight's break before they head to West Bromwich Albion.   

91 mins -
WOW! Neat football sees Gnabry bearing down on goal and his effort cannons back off the inside of the post. It flies back into the path of Ansah who is denied by a last-ditch block from Driver.   

90 mins - Some more nervy moments for the Hammers, as Henderson lines up a free-kick just outside the box. It's pretty poor, to be fair, as it flies straight into the wall and Wellington is on hand to heave it clear.

88 mins - Spiegel might just have saved his team a point, as he tips Miquel's 12-yard drive over the bar. It's a brilliant fingertip stop. Moments later and it's the Hammers who might be celebrating a late winner. Maguire is one-on-one with Martinez, but with Moncur screaming for a square ball, he's denied by a smart stop from the Arsenal 'keeper.

85 mins - Sean Maguire is grappling with Wynter on half way and looks to have got the better of the Arsenal man. Maguire is all set to race clear, only to be hauled back by the referee's whistle. The Irishman's none too pleased with the decision.

82 mins - West Ham are definitely looking the more likely at present, as Turgott shows off a trick or two to win a corner on the near side. This time Martinez calls and makes it his, gathering Moncur's cross cleanly.    

80 mins - Maguire is straight into the thick of the action as he collects it on the edge of the box. He smashes it across goal first time, drawing an excellent stop from Martinez to tip it round the post. Ruddock does his best to direct the resulting corner goalward, but it bobbles the wrong side of the post.

77 mins - Shaw gives to Wellington, who needs no second invitation to have a crack. It's not the best, as he skews his effort well, well wide. The break in play prompts a switch apiece, as Sean Maguire comes on for Lee, while Kyle Ebecilio replaces Elton Monteiro.  

75 mins - Back come Arsenal. Zak Ansah has West Ham's rearguard back-pedalling, before he lets fly from just outside the box. Spiegel is sufficiently concerned to dive full length to his right, but in the end it's a good foot or two wide of the far post.

72 mins - Pelly Ruddock does well to win a corner, but before it can be taken, Ben Marlow joins the action in place of Amos Nasha. Meanwhile, Moncur's corner skims off the greasy surface and though Paulista gets his head to it, his improvised effort sails over the bar.

68 mins - Golden chance. Moncur does superbly to dig out a cross for Paulista at the far post. The Brazilian still has plenty to do, but can only guide his header over the crossbar.   

66 mins - The visitors have a break on and it's Henderson who has space ahead of him. As he tears towards the Hammers box, there are plenty of runners looking for a pass, the low centre, however, is intercepted at the near post. Excellent defending.   

64 mins - West Ham are awarded a free-kick some 40 yards from goal. Moncur puts it in the mixer but it's headed away with interest. It's all gone slightly quiet since the restart, both in the stands and on the pitch.  

61 mins - The Gunners make the first change of the evening, as Serge Gnabry replaces Nigel Neita.   

59 mins - Wellington Paulista looks for Pelly Ruddock but his measured pass is cut out. In his haste to win the ball back, Paulista then concedes a free-kick just inside the Arsenal half.

56 mins - Upon the resumption, West Ham are straight on the attack. Paulista plays it into Moncur, who connects well enough but it flies comfortably wide of the near post.

20:22pm - Good news. The players are back with us and the flood lights are working perfectly well once more. If memory serves, the last time this happened at the Boleyn Ground was against Crystal Palace. West Ham won the rearranged fixture 4-1.

20:18pm - Arsenal's goalkeeper is back on the field, but he's on his own at this stage. The signs are good, as one or two lights begin to come on. While you're waiting, why not watch West Ham's Comic Relief effort, as the Development Squad competed in a Keepy-Uppy challenge with a tennis ball.       

20:15pm - Not entirely sure what to tell you. The players have been led from the field as the PA announcer ensures us that the problem will be resolved! For the record, this evening's attendance is 590.       

53 mins - Arsenal have started on the front foot here in the second half... and the lights have gone out! Extraordinary scenes. The players are congregating on the touchline as someone tries to resolve the problem. We'll keep you posted.       

50 mins - With Eisfeld slowly being helped to his feet, this is an opportune moment to draw your attention to the following. West Ham's U18s' fixture at Liverpool tomorrow will be screened live by Liverpool TV on Sky Channel 434 and Virgin Media channel 544 from 10.45am.  

49 mins - Out of nothing, Arsenal should perhaps have re-established their lead. Wynter's long ball over the top picked out the run of Eisfeld, who toed it past the advancing Spiegel, before colliding with the Hammers stopper. Eisfeld stays down, as West Ham clear their lines. Half-hearted penalty shouts from the visitors but after a long look, Mr Sannerude says no.        

46 mins - We're back underway here and the Hammers have made a switch at the interval, with George McCartney being withdrawn for Frazer Shaw. Sam Allardyce had earlier suggested that McCartney would only play 45, so that's no need for alarm.   

45 mins - There will be one additional minute at the end of the first half and Arsenal have one last chance, as Nigel Neita tries to take on McCartney. The wiley defender has it covered and ferries the ball out of play. There goes the half-time whistle and the Hammers will be sorry to head into the changing room, having ended the half so strongly.  

44 mins - For a second it looks as if Driver has sold Spiegel short with a back-pass, but Mr Sannerude is on the scene and penalises Henderson for a shove on Driver. Panic over.  

40 mins - West Ham have the wind in their sails at the moment and Turgott turns brilliantly inside the box, but his right-footed curler is deflected behind for another corner. Unlike Monday, there's nothing doing from the set piece.   

39 mins - Just as I was about to applaud Monteiro's defending, he gifts possession to Moncur, who weaves his way into the box, before fizzing it just past the far post. Close.

36 mins - Elliot Lee has an excellent chance to complete the turnaround, as he races on to Driver's through ball. Just as he's about to pull the trigger, Elton Monteiro intervenes and his strike is deflected behind for a corner.     

32 mins - GOAL! The Hammers are back on level terms as Pelly Ruddock's low cross is diverted into his own net by Nico Yennaris. Moncur's free-kick was originally cleared into the No10's path and after a very nifty step-over, Ruddock smashed it across the face of goal. Not a great deal Yennaris could do, I suspect.        

28 mins - Better, much better from the home side. Skipper Driver whips in a stunning centre but Paulista is just under the flight of the ball and it rolls away to safety. Seconds later, McCartney is careering towards the by-line, but his cross is cut out at the near post.

25 mins - Arsenal are the width of a post away from doubling their advantage as the Hammers struggle to clear a free-kick. It finally falls at the feet of Jordan Wynter, whose first-time dig crashes off the outside of Spiegel's post.

23 mins - The Hammers have responded well to the early setback and have the Gunners pinned in their own half for a minute or two. Turgott feeds Lee, who cuts inside Hajrovic, before seeing his strike cannon off an Arsenal boot.   

20 mins - Goal! The visitors snatch the initative with what is ultimately a very well worked goal. Eisfeld nods into the path of Henderson, whose low, firm strike wriggles under Spiegel.  

19 mins - A momentary lull ends rather abruptly as Hajrovic clatters Elliot Lee. Referee Adrian Sannerude is straight on the scene and the No.2 goes into the book.   

16 mins - Callum Driver swings a devilish ball in behind the Gunners backline. Paulista and Lee are both after it, though the latter looks the more likely to make something of it, before Arsenal stopper Martinez races from his line to sweep up.    

14 mins - The poor ball boy in the Bobby Moore Stand has some more work to do, as Ignasi Miquel skews a drive high and wide of Spiegel's goal. Not the best.

12 mins - Arsenal win a free-kick ten yards inside the Hammers' half. Fortunately, it's a waste, as Henderson lofts it straight into the empty Bobby Moore Stand.

9 mins - Blair Turgott has a chance to stretch his legs down the right flank, before delivering into the box. It's half cleared, as Moncur picks up the pieces, before teeing up McCartney. The Northern Ireland full-back wraps his left foot around it, but another headed clearance denies the waiting Wellington Paulista.  

7 mins - Arsenal go close once more as Thomas Eisfeld eyes up a strike from 20 yards. His effort has Spiegel scrambling across his goal, as the ball drifts narrowly wide of his right-hand upright. A decent start this from the visitors.  

5 mins - Raphael Spiegel is called into action for the first time this evening, as he beats Conor Henderson's drive away from goal. The ball lands back at Henderson's feet, but he's crowded out and West Ham survive.   

4 mins - At the other end, Elliot Lee wins the Hammers a corner and it will be George Moncur to swing it in. Moncur exchanges passes with McCartney before curling in an inviting centre, only to see the linesman's flag raised.  

2 mins - The Gunners work it out to the right-hand side but Sead Hajrovic's centre is headed clear by Dan Potts.  

1 mins - It's Arsenal who get us underway, with the Hammers kicking towards the Sir Trevor Brooking Stand in this first half.  

18:50pm - The teams are belatedly in and Nick Haycock makes just the two changes to the side that claimed an excellent point at Liverpool on Monday. Kieran Bywater makes way for Pelly Ruddock, while George McCartney replaces Frazer Shaw at left-back.

West Ham United U21s: Spiegel, Driver, McCartney, Nasha, Potts, Spence, Turgott, Moncur, Paulista, Ruddock, Lee. Subs: Maguire, Larkins, Bywater, Shaw, Marlow.  

Arsenal U21s: Martinez, Hajrovic, Hajrovic, Miquel, Yennaris, Monteiro, Squillaci, Ansah, Wynter, Neita, Eisfeld, Henderson. Subs: Gnabry, Iliev, Ebecilio, Bihmoutine, Mugabo.                             

Good evening and welcome to the Boleyn Ground for this evening's Barclays Under-21 Premier League Elite Group fixture pitting West Ham United's Development Squad against Arsenal.

Nick Haycock's side return to east London after Monday's 3-3 draw at Liverpool's Kirkby Academy, bidding for a first win in six in the Elite Group.

The Hammers currently sit fifth in the standings, two points and places above this evening's visitors, who have, however, played two games fewer. Victory tonight would lift West Ham's U21s as high as third, should they triumph by a two-goal margin.

This is the sides' fourth meeting of the campaign at this level, with the West Ham having won all three previous clashes, most recently a 2-0 success at Arsenal's London Colney training ground on 28 January.

Haycock's young charges will be boosted by the experience of George McCartney, who is in line to start, as he steps up his return from a knee ligament injury. The Northern Ireland international has not featured since a 3-2 home defeat by Liverpool on 9 December.

We will have team news as and when we get it, while there will be live text updates from tonight's 7pm kick-off.

West Bromwich Albion