Another Dons chance. Toyosi Olusanya sets up Kevin Nisbet but the striker clips his finish over the bar.

He really should have done better.

Livingston are cutting United apart.

Again, the problems come down the left and this time Cristian Montano is able to get the shot away, but Ross Graham blocks the goalbound effort a few yards out.

Aaron Tshibola drives into the Dundee box and has a passing option to his left.

He doesn't use it and he doesn't shoot either. Wasteful.

Just when the Dons looked to be on top, St Mirren show they aren't just going to sit back on their advantage as Mika Mandron and then Killian Phillips try their luck with shots.

Aberdeen respond with an attack that ends with Mitchel Frame having an attempt on goal that St Mirren goalkeeper Ross Sinclair deals with, albeit a little unconvincingly.

Brian McLauchlin
BBC Sport Scotland at Tannadice

Interim Livingston boss Scott Arfield looks the coolest person in the ground. He stands with his hands in his pockets on the edge of the away dugout clearly satisfied with the way his players have gone about this game. The visitors could easily be two or three up.

Meanwhile United boss Jim Goodwin looks far from happy with his team.

Image source, SNS

A lengthy spell of Kilmarnock possession in the final third ends with Michael Schjonning-Larsen trickling an awful shot wide.

Tyrone Smith
BBC Scotland at Pittodrie

It has been better from Aberdeen since the break, although they have yet to dirty the gloves of Ross Sinclair in the St Mirren goal.

Image source, SNS

Stevie May is tearing through the Dundee United defence. Away from one, then two, he's on the edge of the box... but his shot slices just the wrong side of the post.

Kilmarnock work a clever corner to the edge of the box but Findlay Curtis' effort is blocked.

Dom Thompson then watches a deflected attempt curl just wide.

Another fast start from United.

This time it's a long throw, which Ross Graham flicks on. Zac Sapsford is running onto it and powers a header at goal, but Brooklyn Kabongolo gets his noggin on it to block over the bar.

Dundee warn Kilmarnock they still fancy a win as Ashley Hay drives a finish low at Max Stryjek.

Should probably do better, the striker.

Big chance for Aberdeen!

Toyosi Olusanya breaks right through the middle and looks like he has a gilt-edged opportunity for the equaliser but his first touch is poor and allows Alex Gogic to make a last-gasp tackle and put the ball just past the post.

Tyrone Smith
BBC Scotland at Pittodrie

Under way at Pittodrie again

Aberdeen boss Stephen Robinson's unhappiness at what he saw in the first half is reflected by the fact he has made two changes, with Jack Milne and Lyall Cameron on for Liam Morrison and Afeez Aremu.

Brian McLauchlin
BBC Sport Scotland at Tannadice

Some terrific fight from Livingston and you wonder if a little more of this had been in evidence earlier in the campaign they might not have found themselves bottom of the pile.

United have also had a few chances with Johnny Russell in particular unable to take the opportunities that came his way.

There is an end of season feel to this one though.

Aberdeen have posted a warning to supporters that they are about to set off "one or two distraction devices to scare off the seagulls".

Not much noise from the home fans to ward off the pesky birds.

It's 1-1 between Clyde and Hamilton Academical too.

That's the first leg of the League 1 play-off final and that is available to watch via BBC Alba.

It's all square at East End Park, with Dunfermline Athletic and Partick Thistle locked at 1-1 in their play-off semi-final first leg.

You can follow the action here.

Image source, SNS

A half not without incident, but without quality in front of goal.

Both sides might be annoyed they've not taken the lead. Neil Farrugia missed a sitter for the hosts, while Stevie May struck the upright for the visitors.

There's also been a goal chalked off, rather questionably. Cristian Montano was ruled offside after nodding in from close range. Watch Sportscene for that one.

With not much to play for, there's a lack of ruthlessness.

Image source, SNS