Here's how the teams are lining up this afternoon at the Emirates. 

Around seven minutes until we get underway there. 

Image source, .

Image source, .

Jermaine Jenas
Ex-Spurs & England midfielder on Final Score

"I can understand from a Hull City point of view it's more important to be top of the league but Arsenal can still do the double and that’s taking out Champions League, so you should still go for that. Although, that said, it is still a strong team."

Len Morrison: The replay can be the big day out that a club very rarely gets. Almost a dream come true for some fans. It has to stay! 

Steve E. Smith: Keep the replays and stop blaming poor Euro performances on being "tired". If you don't like it, get a job in an office or factory.

Graham Denton: 29 changes to the 2 teams @ The Emirates. Ah, the romance of the cup. #FloggingADeadHorse 

29?! Are you sure Graham?  

Use the hashtag #bbcfacup,, external text us using 81111 (UK only) or get involved on the BBC Sport Facebook page., external

Ninth plays third in the Championship, as Cardiff host promotion-chasing Brighton. That game gets under way at 12:30 GMT. Join Josh Hunt for our live text over here.

Jermaine Jenas
Ex-Spurs & England midfielder on Final Score

"You have to look at Chelsea from when Guus Hiddink came into the job. If they can come out of this with an FA Cup, they would be absolutely delighted."

Image source, Getty Images

To replay or not replay, that is the question - and speaking to BBC Radio 5 live, Hull boss Steve Bruce thinks replays should go...

"Neither team wants a replay, especially the big clubs battling in Europe and we all want the big clubs to succeed in Europe. 

"I would be in favour of scrapping replays. No one loves the cup more than I do but if we draw today, I don't know where we would fit it in. We made changes because we need the team fresh for Tuesday. I think it would help alleviate a lot of problems if there were no replays."

Hull play Ipswich on Tuesday, and Sheffield Wednesday on Friday...

Look out, we've done some maths....

Danny Welbeck makes his first start in 308 days for Arsenal, while Hull's Manchester United loanee Nick Powell is named in a starting XI for the first time in 544 days.

Welcome back, lads. 

Image source, Getty Images

Brett, Weymouth: Aww.. These poor over paid Premier League footballers, having to do an extra night's work for their £100,000 a week.They're paid to play football matches. Keep the replays! 

James in Dulwich: I surely am not the only football fan who wants to get rid of the League Cup? It's not as romantic as the FA Cup and isn't exciting. Then we can keep the replays. 

Shaf Ullah, High Wycombe: FA Cup should be kept to the same format. I started watching it in the 70's. It is the most prestigious domestic trophy in football. The semi-finals should be played at neutral grounds not Wembley. Only the finalists should have the privilege. It's all about the day and the occasion. 

Use the hashtag #bbcfacup,, external text us using 81111 (UK only) or get involved on the BBC Sport Facebook page., external

Football Focus

Football Focus starts at 12:10 GMT on BBC One, and on this page if you are in the UK.

This week's FA Cup edition is brought to you from Watford, where Dan Walker will be joined by Jermaine Jenas and Mark Lawrenson. 

Oh, and this little beauty....

BBC Radio 5 Live

Commentaries, oh so many commentaries.

BBC Radio 5 live Sport's Saturday programme has just got under way. All four of today's games are being covered - either on 5 live or sports extra - as well as local radio.

More details here.

Arsenal make nine changes from the side that beat Leicester City - only centre-backs Per Mertesacker and Laurent Koscielny keep their places.

Arsenal XI: Ospina, Chambers, Koscielny, Mertesacker, Gibbs, Flamini, Elneny, Campbell, Iwobi, Welbeck, Walcott  

Hull have gazumped the Gunners by making 10 changes - only defender Curtis Davies remains from the 0-0 draw against Brighton.

Hull XI: Jakupovic, Davies, Bruce, Maguire, Tymon, Taylor, Meyler, Maloney, Elmohamady, Powell, Diomande

Good afternoon, FA Cup fans. 

The live text keyboard is firmly in my grasp. Let's continue where Sham left off, shall we?

That's your build-up for the afternoon's matches and my stint done on the live text.

I hand the keyboard over to the capable hands of Caroline Chapman, who will guide you through the action.

Enjoy.

Mark Lawrenson
BBC football expert

"Watford got a really good win at Crystal Palace last time out and their form has really picked up again since they lost four in a row at the turn of the year.

"There will be a lot of Leeds fans at Vicarage Road and there should be a great atmosphere, but I am backing the Hornets to go through."

Prediction: 2-0

Lawro's full predictions v BBC Breakfast host Bill Turnbull

Paul Clarke: The Premier League and Champions League will kill the FA Cup. Such a pity

Tom Fisk: The amount of money footballers are on, two games a week is surely not too much to ask. Keep the replays!

Use the hashtag #bbcfacup, text us using 81111 (UK only) or get involved on the BBC Sport Facebook page., external

Watford head coach Quique Sanchez Flores: "I think during the season we are mixing well both competitions.

"The league is our main priority, of course, but now we are able to change the mentality when we are going to play in the FA Cup.

"Our focus this week is on the FA Cup. We are playing at home with our fans, so we accept the responsibility to try and win this match."

Ch-ch-changes galore.

Nine for Arsenal - who may have one eye on Barcelona - and Hull go one better, making 10. Full team news to follow...

Leeds head coach Steve Evans: "We'll make some tough decisions on Saturday.

"I aim to consider changing the personnel from Middlesbrough and changing the way we play.

"We can't be as attack-minded and leave ourselves open but, at the same time, I want us to go there and be competitive and win the game."