No early goals so far at the Excelsior, though Craig Watson and Liam McStravick have had efforts blocked for the hosts.

Can I get a chance to breathe? Please?

Cracking start from Forfar.

They've clipped both posts, latterly from a Stuart Morrison header at a corner.

Hibs in danger of being caught cold in Angus.

Brian McLauchlin
BBC Scotland at Station Park

The south end of Station Park is packed with Hibernian fans and each and everyone of them will be expecting nothing other than a win against their League two rivals.

Ray McKinnon says if his team can stay in the game until the last 30 minutes he will have a real go.

Let’s see what they can do!

Here. We. Go.

Cup madness, send it.

Livingston manager David Martindale tells BBC Scotland his reasoning to omit forward Joel Nouble from today's squad: "Big Noubz is out the squad. I made the decision to take him out the squad yesterday.

"To be honest, there has been a bit of interest in him. We've had dialogue with two clubs, both down south, but I know there's a club in the Scottish Premiership too. I don't think it would be fair on Joel.

"He knows there is interest and I am not a million miles away from concluding a deal - that could still fall through. If you put a player on the park and he gets an injury, denying him a move and the club a wee bit of money, then it's in the best interests of everybody.

"Big Noubz wanted to play, I need to say that, but I thought it was in the best interests to take him out."

Image source, SNS

Ross County boss Derek Adams tells BBC Scotland ahead of the clash with Thistle: "It's important that we play against Thistle today, that we win and go through to the next round of the cup.

"I think people have looked at last season when Partick did ever so well in the first game and Ross County did ever so well in the second game.

"I've watched them a couple of times already this season. Once when I was down in England I came up to watch a game, and I watched them against Arbroath a couple of weeks ago. I understand how they play - they're very exciting, very talented, want to play on the front foot -

"We're going to have to be at it today.

"Last season was exactly the same, it was like a basketball game at times. We just have to control the game better and take our chances."

Hibs head coach Nick Montgomery tells BBC Scotland: "We're ready. These are difficult games. We're here to try and get through to the next round.

"Rudy is a good young player, Dylan Vente gives us an option off the bench.

"The pressure is on us. You see the magic of the cup everywhere. It's a special competition for the club. We need to put in a performance."

Image source, SNS

Andy Burke
BBC Scotland at St Mirren Park

It's 11 years since Efe Ambrose won the Scottish Cup with Celtic and here he is still doing his stuff aged 35 in the Queen of the South defence.

If the Nigerian is looking for an omen, Celtic did beat the Buddies on that cup run in 2013, but fair to say a victory for his side in Paisley today would be much more unexpected.

If the Doonhamers are to pull off a shock here you'd imagine Ambrose and his defensive colleagues will need to put in one helluva a shift.

St Mirren manager Stephen Robinson tells BBC Scotland: "We're looking forward to it. We've got a home draw which everybody wants and it's up to us to take the game to Queen of the South.

"If we play to the top of our game, we'll win. We're light on numbers in midfield. Kwon has been excellent since he came in. He's a talented boy who can control the game, which we'll need."

Image source, SNS

Tyrone Smith
BBC Scotland at the Global Energy Stadium

It is always interesting when a top-flight team has to tackle one from down the divisions.

On paper, Ross County will start the game as favourites, but if you look a little deeper it's perhaps not as clear cut.

Partick Thistle may be playing a league below, but they are in good form in contrast to County.

And the men from Maryhill will no doubt be travelling north in determined mood and with revenge on their minds.

The last meeting of the sides was in Dingwall in June, in the second leg of the Premiership play-off final.

With 20 minutes left, Thistle were 3-0 up on aggregate and seemingly heading for promotion before a dramatic late collapse saw them lose the game on penalties.

The pain of what happened that day is still very much being felt by all those of a Thistle persuasion and a win this afternoon would help ease that.

Image source, SNS

Motherwell manager Stuart Kettlewell tells BBC Scotland: "We had a couple of weeks away and the players were able to reset and recharge, but you want to get back into competitive action.

"The fourth round is always something to look forward to. We have a home tie and we want to emulate a few performances going into the winter break.

"We're depleted in numbers but I'm happy with the players I've got on the pitch. There's signs that things are moving in the right direction.

"Alloa will be coming here looking to try and create an upset and it's our job to make sure that doesn't happen."

Martin Dowden
BBC Scotland at Rugby Park

This has the feel of two teams hell bent on doing something significant in this competition who would rather have not met at this stage.

There's an air of expectancy around this stadium given where Kilmarnock have positioned themselves at this stage of the season. But they face a stern test in their pursuit of an extended cup run.

Both squads have been added to but that's mainly reflected on both benches with starts coming a touch early for new recruits. Some may still make an impact.

Kenny Crawford
BBC Sport Scotland at Almondvale

Livingston manager Davie Martindale has told us pre-match that forward Joel Nouble is out the squad because of a potential transfer away from the club.

Martindale says they’re “not a million miles away from concluding a deal”. He added that two clubs in England are interested, as well as a Scottish Premiership club.

Nouble was happy to play today but Martindale felt it better for everyone involved to keep him out.

A bit of chat in the Sportsound studio on why Motherwell manager Stuart Kettlewell is still under pressure.

The Fir Park club welcome third-tier Alloa today...