Best opening of the match and it comes for Blackburn.

The hosts work it well down the right and Elliott Bennett gets down the right-hand channel of the area before stinging it in along the ground. Chris Brown has a swing but is beaten to it.

Yeah. Not a natural right-back Michail Antonio. Very much a head down, get forward kind of player.

Image source, Reuters

Mark Lawrenson
BBC football expert

"West Ham's Michail Antonio will be very interesting. He has already gone on a mazy run and forgot to run back. You can see centre-back James Collins pulling him back."

Another Hammers free-kick as Adam Henley wraps his legs around Michail Antonio.

Dimitri Payet puts it in and it's cleared to the edge of the area, where Victor Moses lashes it against Shane Duffy to be deflected wide.

Image source, Reuters

Anyone knocking Chris Brown can sit down.

The big striker has already made his first contribution... it was a foul on Cheikhou Kouyate.

Off we go then. A semi-full Ewood Park sees the home team get us under way.

Image source, Reuters

Emmanuel C Manucho: I got a few questions Chris Brown plays upfront..is it the same singer?

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Here's a reminder of your teams.

Blackburn look like they will go with first-touch wizard Chris Brown up top by himself.

West Ham have a strong looking side - any team with Dimtri Payet in it is a good one - but it seems Michail Antonio will have to play as a makeshift right-back.

Blackburn: Steele, Marshall, Ward, Duffy, Henley, Bennett, Lenihan, Akpan, Conway, Taylor, Brown.

Subs: Kilgallon, Hanley, Watt, Evans, Raya, Jackson. 

West Ham: Randolph, Antonio, Collins, Ogbonna, Cresswell, Noble, Kouyate, Obiang, Moses, Emenike, Payet.

Subs: Song, Adrian, Henry, Lanzini, Oxford, Parfitt-Williams, Browne. 

Referee: Jon Moss (W Yorkshire)

Mark Lawrenson
BBC football expert

"I think all of Slaven Bilic's signings have been great. Last season, it was about staying in the Premier League. Stay in the division? Look at what Leicester and Watford have done. West Ham haven't had the same amount of praise as them.

"West Ham have had so many injuries but they have coped with them and shown they have a fantastic spirit. They are really strong and can be physical too. They've got a bit of everything."

Kudos to the Hammers fan who has traveled all the way to Lancashire wearing his onesie...

Image source, Getty Images

Alistair Mann
MOTD commentator

"The euphoric scenes which greeted West Ham's last-gasp winner in the last round against Liverpool reflected how much this club and its supporters are thirsting for success.

"With arguably their best team in recent memory, coupled with the emotion surrounding their final season at Upton Park, there's a feeling that this could just be their time for a trophy after a long 36-year wait.

"There seems no logical reason why Blackburn should scupper those aspirations; their midweek Championship win against Fulham was their first in 10 matches, as they've slipped perilously close to the drop zone.

"Add to that West Ham's 11-match unbeaten run against Rovers and it's hard to make a case for an upset - that said, it is the FA Cup…."

Mark Lawrenson
BBC football expert

"One of the stands is not even half full, but you can see the fans walking down the hill to the ground. Hopefully, we'll have around 20,000 by the time we kick off."

I can see a few of them legging it down a muddy path. If you're in the Lancashire area, you've got seven minutes to get yourself to an FA Cup fifth-round tie. Hurry!

Always jealous of anyone who gets to have a nap...

Image source, Getty Images

West Ham first-team coach Julian Dicks on BBC Radio 5 live: “Slaven Bilic knows what the FA Cup means to supporters. We are taking over 7,000 fans to Blackburn and they want to see the players give 100%. We have to be top of our game to win on Sunday, I played in many games in the FA Cup and if you are not on your job it becomes difficult. 

"Slaven’s calmness has surprised me. We have been losing games at half-time, and if it was me, I would be losing my rag but the gaffer is so calm."

Former West Ham winger Matthew Etherington on BBC Radio 5 live: "I speak to a few of the boys, they cant speak highly enough of Slaven and buy into his methods. They train hard day in and day out and you can see that in the way they have come from behind in games."

It's not the most glamorous double of all time, but Slaven Bilic is the proud owner of two playing appearances in the FA Cup.

The first, for West Ham, came in a 1-0 loss to Wrexham in January 1997.

The second, while at Everton, was a 2-0 win at Bristol City in January 1999. In fact, it was Big Slav's last game in English football.

What's even more remarkable, is that Ibrahima Bakoyoko scored both of Everton's goals - he only got seven in his entire Toffees career.

Image source, PA

The lack of punters currently at Ewood Park is explained...

Peter Brighouse: I rang up Ewood yesterday to check the time of kick off - they said "what time can you get here"

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Image source, Getty Images

West Ham's recent FA Cup form may not be grand, but Blackburn on the other hand... keep an eye on them today.

They've beaten four Premier League sides in the last three years in the FA Cup - Swansea, Stoke and Arsenal.

In fact, that win over the Gunners in 2013 was Arsene Wenger's side's last FA Cup defeat.

There is also the small matter of holding Man City to a 1-1 draw in 2014.

Not to be sniffed at these Rovers, not to be sniffed at all.

Image source, Getty Images

Slaven Bilic played his hand early this year when he stated he would rather win the FA Cup, external than qualify for the Champions League.

What do you reckon Hammers fans? Would you rather move into your new Olympic Stadium home with an extra, big shiny trophy in the cabinet - or the potential of Europe's elite coming to town?

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Martin Monday-Jones: Hanley, Watt and Gomez are huge misses today for Rovers. Strange team selection. Going for a hopeful 0-0.

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A hundred years or so ago, Blackburn Rovers were a big deal.

Yes, of course they were a big deal when they won the Premier League in 1995, but they were also champions of England in 1912 and 1914.

Not to mention the five FA Cups they won between 1884 and 1891. In fact, they are the last team to have lifted the trophy on three consecutive occasions - 1884, 1885 and 1886 - a feat Arsenal could match this year.

Their sixth and final FA Cup success came a mere 88 years ago, when my granddad was knee high to a grasshopper.

Image source, .