Now, did Jayden Richardson catch Jamie Barjones in the box when the St Mirren defender was trying to clear the ball?

He certainly catches him with an arm across the face, but I'm not sure it's a foul.

A long ball is launched over the top of the St Mirren defence from a free-kick.

Chris Mochrie tries to scamper on to it, but it's too heavy and Shamal George picks up. St Mirren work it right up the pitch but Jake Young's final pass is overhit.

Stephen Craigan
Former Motherwell captain on BBC Scotland

It's going to be interesting to see how Airdrie deal with the physicality of St Mirren.

They're a strong, powerful side. You can see the difference in physique on the pitch when you look at both sets of players.

Mostly been St Mirren with their foot on the ball, but they've been unable to work their way into a shooting chance.

That's until Jake Young tries from distance, but he slips as he hits it and Harry Stone smothers.

Kevin Clancy is the man in the middle.

Airdrieonians have their home kit, white with that red stripe around the neck. St Mirren are in their all purple kit.

Liam McLeod is your man on the mic. Stephen Craigan is on co-comms.

And away...

Of course, Aaron Taylor-Sinclair played for Motherwell during Stephen Robinson's time there back in the 2018-19 season.

He only made nine appearances though, so fair enough if you failed to recall.

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St Mirren manager Stephen Robinson tells BBC Scotland: "We're four unbeaten now so we've reset ourselves. We just said, 'let's get back to doing what we do well'.

"On Tuesday, we should have won by more. There were a lot of chances we didn't take. But a win against the league leaders, a very good side, puts you in good stead.

"It's mentality. When you play teams in the division below, you should beat them, but it's never easy. You have to have the mentality to do the same things and not take liberties."

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Airdrieonians head coach Aaron Taylor-Sinclair tells BBC Scotland: "Boys are looking forward to it as soon as the draw was made, hopefully we can cause an upset.

"It's always special, especially under the lights. It's a good showcase of what the boys can do.

"The turnaround since I came in has been massive. The boys have taken to my ideas and what I want to do. It's just about implementing that tonight.

"The cup games always build momentum towards the league. We know it'll be a tough test, I played under Stephen Robinson so I know what he'll be saying to the boys."

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Airdrie are already on their third head coach of the season, but the mood music is upbeat around the Excelsior right now.

Following Rhys McCabe's surprise exit in August as player-manager, veteran Danny Lennon was appointed. He lost six of his eight games in charge and was subsequently replaced by former Partick Thistle left-back Aaron Taylor-Sinclair.

He's been in charge for 18 games, only losing four of them and winning 10, as well as guiding them to the SPFL Trust Trophy semis.

Not bad for the former Antigua & Barbuda international, in his first role as a head coach.

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As for St Mirren, it's been a funny old season. Winning the League Cup back in December is a memory that will be with them for a lifetime, but their form since has dropped like a stone.

Sliding down the table, there has been talk of a relegation battle but a win on Tuesday night against league leaders Hearts has soothed that somewhat.

Stephen Robinson has been critical of his players at times in the last month, accusing them of 'believing the hype' at one point.

However, he was immensely proud of them through the week. He'll beam again if they can get through to the quarters.

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It's time to join Thommo and the gang on the BBC Scotland channel.

Light rain and a moderate breeze, windchill taking it down to a balmy 0° at pitchside.

Hope they've got their heated gilets on.

This is Airdrieonians' third match in the competition, having beaten Hamilton Accies and Arbroath to get to this stage.

The Accies were dispatched comfortably in a 4-0 win, but the game against Arbroath was tougher. Despite going ahead three times, Airdrie were taken to penalties but Harry Stone became the hero, saving two penalties to secure passage.

As for St Mirren, they've only played once but it also went to penalties. That was against fellow Premiership side Livingston, with the game finishing 1-1 before the shoot-out.

Jeremy Bokila skied one for the hosts before Shamal George saved from Tete Yengi, with Malik Dijksteel scoring the winner for the Buddies.

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Airdrie visited Arbroath through the week in SPFL Trust Trophy action and, perhaps unfortunately for Aaron Taylor-Sinclair's side, it went to penalties. At least they won.

Aaron Taylor-Sinclair makes five changes to the side, with Dylan MacDonald, Chris Mochrie, Charlie McArthur, Jamie Barjonas and Cole McKinnon coming in.

McArthur is on loan from Newcastle United, while you might remember Mochrie from Dundee United, and Barjonas and McKinnon from Rangers.

Adam Devine and Sean McGinty drop out of defence, Gavin Gallagher and Scott Constable out of midfield, and Lewis McGrattan out of attack.

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St Mirren also played midweek, beating Premiership leaders Hearts 1-0 thanks to an 88th-minute header from Miguel Freckleton.

It was a fine performance from Stephen Robinson's men, ending a run of seven games without a win, and as a result the manager only makes one change to the side.

Jake Young, sent off on his first St Mirren start against Dundee last weekend, comes back into the XI in place of Dan Nlundulu out altogether.

Manchester United youngster Jacob Devaney, who joined on loan on deadline day, and really impressed on Tuesday night. He keeps his place in midfield.

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Airdrieonians: Stone, MacDonald, Ross, McArthur, Strapp, Telfer, Barjonas, McKinnon, McMaster (c), Mochrie, Henderson.

Substitutes: Melrose, McGinty, Gallagher, Devine, McGrattan, Constable, Hastie, Aird, J Smith.

St Mirren: George, Fraser (c), King, Freckleton, Richardson, Phillips, Devaney, Gogic, John, Young, Mandron.

Substitutes: Mullen, Tanser, Sobowale, Donnelly, McMenamin, Idowu, Dijksteel, Calvin, Etete.

Sixteen teams. Eight ties. Four quarter-finals await.

We had a couple of upsets three weeks ago in round four, but will there be one tonight in North Lanarkshire as Airdrieonians host League Cup winners St Mirren?

Before we have a look at the rest of the ties, let's have a look at the teams.

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