Danny Mills
Former Man City defender on BBC Radio 5 live

"That is a goal Marcus Rashford will want to see time and time again. It's the first bit of real quality in the final third. What a fabulous strike. He bends it gloriously into the top corner. West Ham have to really go for it now."

Martin Keown
Former Arsenal defender on BBC One

Image source, Reuters

"That's just ruthless finishing. This fella is going to be something special. The composure that he has. He stands up Tomkins and knows what he wants to do. Pick that one out."

Whenever he is in the area, Marouane Fellaini looks like what I'd imagine a bear on rollerskates would like. He's bumbling in possession but somehow it works as he brushes off one challenge and almost gets a pass across to Anthony Martial, but West Ham clear.

Then, Cheikhou Kouyate gives David De Gea the chance for a bit of catching practice with a speculative effort from distance.

Danny Mills
Former Man City defender on BBC Radio 5 live

"The first half was compelling but just lacked a bit of quality in the final third. Dimitri Payet hopefully has changed his boots because he was just a little bit out.

"There are a lot of good players out there but Manchester United are just missing that understanding between themselves in the final third."

Martin Keown
Former Arsenal defender on BBC One

"Manchester United have started well, certainly down that West Ham right-hand side."

Slaven Bilic is immediately waving his arms around on the edge of his technical area. That, in football terms, is the signal to 'gerrit forward'. His players haven't responded to that call yet though because it is Manchester United who have picked up from where they left off, Jesse Lingard launching an effort into the sidenetting from distance.

Football stadiums. Cathedrals. Call them what you will. They don't half look decent under the lights don't they?

Image source, .

No substitutions and no rain as Manchester United get the second half away.

It seems West Ham fans and the wider public are not too worried about Manchester United having the edge. Forty-seven percent of you think West Ham will go on to win the FA Cup in our vote.

Image source, .

West Ham legend Trevor Brooking speaks to BBC Sport: "I think Man Utd have had the edge. Jesse Lingaard had a chance, Rashford's pace has been a problem. At the moment Manchester United will be a bit frustrated they are not ahead."

Meanwhile, the mighty Morley Town are also in action.

Proper football.

All sorts of football happening tonight. 

Across London, Crystal Palace host Everton in the Premier League and my colleague Caroline Chapman is all over that game here.

Meanwhile, Emlyn Begley and his vast European football knowledge is getting a run out as he oversees the action in the Champions League. Keep across his words of wisdom here.

Andy Carroll let Ander Herrera know he was around late in the half. The FA Cup, the floodlights, the rain, a replay and an old-school tackle in there too. Ouch.

Image source, .

Joe Wedwgood: Fosu-Mensah so impressive. Utd crying out for poacher, someone to replace Hernandez. A Henrik Larsson type man!!

RegularJon: So many chances to get ahead. Need to be more clinical. Have a feeling missed chances will cost us.

Danny Mills
Former Man City defender on BBC Radio 5 live

"It's got a little more scrappy as the tie has worn on. West Ham started at a ferocious pace. Payet has been a little bit off. As the tie wears on you are going to find both teams becoming a bit tense. No-one wants to lose this."

Image source, Opta

For the first 10 minutes, West Ham, and in particular Dimitri Payet, looked dangerous but they became far too predictable as the half wore on. Almost every attack came down the left - through Payet - and Manchester United have adapted to cope with it.

Alan Shearer
Former England captain Alan Shearer on BBC One

"I think Man Utd have been the better team in the fist half. Fellaini had a chance, Lingaard had a chance. Not a great game, not enough goal-mouth action. We expected more from West Ham and I think their manager will have a few words at half-time."

Danny Mills
Former Man City defender on BBC Radio 5 live

Image source, AP

"I wonder if Slaven Bilic will tweak the system at half-time. Maybe to get the ball out wider earlier and get some really good crosses into the box. They haven't really done that."

Phil McNulty
BBC Sport chief football writer at The Boleyn Ground

West Ham United opened with the sort of confidence you would expect but Manchester United have improved as the half went on and ended it the stronger team.

The Hammers need to get Dimitri Payet into the game more while Andy Carroill has been well contained.

Still all to play for in the battle to face Everton at Wembley in the FA Cup semi-final.