William Gillingham has to score!

He heads wide from 10 yards out. Massive chance!

Makenzie Kirk could have had a hat-trick in this game.

The striker ghosts into space in the Accies box again, but his glancing header goes just wide of the far post.

What a block to deny St Johnstone.

Stephen Duke-McKenna has been lively down the right wing since coming off the bench, and he fires a cross into a dangerous area that falls to Makenzie Kirk's feet.

He looks sure to find the back of the net, but Reghan Tumilty bravely throws himself at the shot and averts the danger.

A huge chance for Hamilton to hit the front.

Oli Shaw, on as a substitute, springs the offside trap and goes through one-on-one with Saints keeper Andy Fisher, but can't find the corner, with the keeper pushing his shot away.

The visitors win a free-kick right on the edge of the box - which looked like it might have been inside the box. Adam Frizzell curls the set-piece against the crossbar.

Lewis McGregor then misses a sitter in front of goal, shooting tamely at Jon McCracken after a fresh-air kick from one of his team-mates.

Dundee then fly up the other end and Simon Murray pulls the ball out the sky with a deft touch and chips a volley onto the bar.

That should be 2-0.

Jamie Brandon's header from Robbie Muirhead's corner looks as though it's nestling in the bottom left corner but Nicholas Suman produces a full-stretch save to deny the Livingston captain.

What a stop!

There's really not much happening at McDiarmid Park.

Elliot Watt's free-kick from the right is easily cleared by the Hamilton defence.

Huge chance for Cove as Fraser Fyvie gets on the end of Findlay Marshall's cross, but his sliding effort goes well over the top.

The visitors' best opportunity so far.

Simon Murray should make it 5-0.

A cross comes in from the right and the Dundee skipper, just a few yards out, puts his shot straight at the keeper.

Jane Lewis
BBC Sport Scotland at Dens Park

Dundee are in complete control. Aidrieonians have offered very little going forward, but when they have ventured forward Jon McCracken has handled any threat.

Dundee hit six when these teams last met. Could they go higher this time?

Livingston and Cove are up and running again. The others won't be far behind.

Kenny Crawford
BBC Sport Scotland at Almondvale

It’s going to plan for the Championship side against their League One visitors so far, but Cove have definitely sprung into life a lot more since going behind.

Looks to me like 50-100 travelling fans, who'll be hoping for something to cheer in the second half.

Brian McLauchlin
BBC Scotland at McDiarmid Park

St Johnstone had two glorious opportunities just before the break and Simo Valakari will be hoping they do not rue those.

Hamilton boss John Rankin will be asking his players just to stay in the game and who knows what can happen in the second half.

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Despite Dundee's dismal form going into this one, and Rhys McCabe saying Airdrie had turned a corner, it has been one-way traffic at Dens Park.

Tony Docherty's side have set traps for Airdrie all over the park and the Championship side have walked into them every time.

On a handful of occasions, the Dee have pickpocketed the Diamonds in their own half and picked them off. Two for Rangers-bound Lyall Cameron, an easy header for Clark Robertson and a simple finish from Oluwaseun Adewumi. Easy days.

Image source, SNS

It's goalless in Perth as both sets of players head off for their half-time oranges.

As D:Ream once sang, things can only get better.

Image source, SNS

Ryan McGowan's goal put Livingston deservedly in front after 25 minutes, but Cove have come back into it since then.

The League One visitors should take great confidence from that going into the second period. Remember, Livingston had to play a semi-final on Wednesday night.

Image source, SNS