Martin Dowden
BBC Sport Scotland at Rugby Park

That's likely the best moment Kilmarnock fans have enjoyed in quite some time.

An incredible finish from Dom Thompson off both posts from a rehearsed set piece.

Stunning!

Ross Graham hooks a shot onto the roof of the Ayr United net after a corner drops to the Dundee United skipper.

Both teams are trying to get the ball down and play on a patchy pitch.

Tony Yogane is denied by Kelle Roos and then another chance comes crashing off the crossbar.

How on earth are Dundee not ahead?

The visitors very much in control so far at Rugby Park.

None of this afternoon's games have VAR in operation. The Premiership clubs hosting matches had the option but chose not to as they would need to pay for it.

It will be in action at Tynecastle tonight, though, because it has to be for televised games at top-flight grounds.

Ross County come close, as Jordan White nods a corner just wide. Motherwell have had some early pressure as well. An open start at Fir Park.

Martin Dowden
BBC Sport Scotland at Rugby Park

Kilmarnock are desperate to end their long winless run and move forward under new management.

Neil McCann says he's been encouraged by what he's seeing behind the scenes and is urging his side to show bravery to get that result.

There's been a significant upturn for Dundee of late. Three wins from four and additions to the squad, they come here with a degree of belief that wasn't there earlier this season.

A big opportunity for both clubs.

Whistles peeping up and down the nation as 10 more Scottish Cup ties get started.

With a late kick-off at Tynecastle, we'll need to wait until 22:30 for Sportscene highlights on BBC One Scotland.

But it will be worth staying up for since Dougie Donnelly will be presenting!

Dougie, who reminded us of his stellar talent on Sportscene's 50th anniversary show, will be joined by Paul Hartley and Stephen Craigan.

Motherwell have made six changes to their side and Jens Berthel Askou has given teenager Luca Ross a first ever start for the club.

Young goalkeeper Matty Connelly also comes in, alongside Johnny Koutroumbis, Liam Gordon, Callum Slattery and Apostolos Stamatelopoulos.

Stuart Kettlewell returns to his former club as County boss once more, and names a side very similar to the one that beat Partick Thistle in the league.

There's plenty of experience in the likes of Ross Docherty and Connor Randall, with Trevor Carson, Dean Cornelius and Jordan White all having had spells at Motherwell.

Livingston and St Mirren were scheduled to meet each other in the Scottish Premiership earlier this month but the game was postponed, to be played this coming Tuesday evening.

Hence, these sides will get to know each other quite well over the next few days, having last met in Paisley only a few weeks ago when St Mirren won 1-0.

But that was the Premier Sports Cup winners' last win, with a draw and four defeats since. Their only change today is Jayden Richardson in for Conor McMenamin.

Livi's wait for victory goes back to August and they've picked up just six draws in the interim. They make four changes today with recent signing Scott Arfield coming into the starting XI, along with Daniel Finlayson, Robbie Muirhead and Lewis Smith.

Image source, SNS

Former Derby County and Aberdeen goalkeeper Kelle Roos makes his debut for Kilmarnock.

The Rugby Park side remain winless since October. Can the Dutch shot-stopper make a difference?

As for Dundee, Steven Pressley makes one change, with Yan Dhanda replacing Finlay Robertson.

Image source, SNS

Dundee United's new signing Neil Farrugia is on the bench today. Born in Paris, the Republic of Ireland Under-21 international has a degree from UCD in biomedical science.

Clever boy.

Opponents Ayr United are fourth in the Championship and beat Turriff United 3-0 to reach the fourth round.

Image source, SNS

As we digest the surprise result in Fife, a reminder that there are 10 more games coming up at 15:00.

Airdrieonians v Arbroath

Camelon Juniors v Elgin City

Dundee Utd v Ayr Utd

Kelty Hearts v Cove Rangers

Kilmarnock v Dundee

Livingston v St Mirren

Motherwell v Ross County

Partick Thistle v Montrose

Stenhousemuir v Morton

The Spartans v Inverness CT