Hibs striker Mykola Kuharevich twists and turns away from his man just inside the area, but blasts his shot over the bar.

A little more composure and the visitors could be ahead.

What a chance for Motherwell to go in front.

Tawanda Maswanhise controls in the box, and has a team-mate free to his left, but chooses to shoot and puts it over the bar.

Kheredine Idessane
BBC Scotland at Tannadice

How highly regarded is Motherwell's teen sensation Lennon Miller? The 18-year-old has been standing in as captain since Stephen O'Donnell had to leave the field injured after half an hour.

How on earth have Celtic not scored?!

First, Luis Palma's curling effort is tipped out by Jon McCracken, then the Dundee keeper does ever so well to keep out a close-range effort from the same player before Kyogo Furuhashi blasts over.

Tyrone Smith
BBC Sport Scotland at Pittodrie

Aberdeen deservedly with the lead at the break, the only disappointment for them is that they aren't further ahead.

Will they rue that weak Jamie McGrath penalty miss?

Rangers have been a lifeline so the big question is, can they take it in the second half and turn this game round?

Image source, SNS

Up and running at Celtic Park again. The other 19:45 kick-offs won't be far behind.

Aberdeen should be out of sight but Rangers are hanging on.

In addition to Nicky Devlin's opener, Graeme Shinnie hit a post and Jamie McGrath had a spot kick saved.

Glimmers of life from the visitors in the last few moments.

Image source, SNS

Much better from Rangers at the end of this first half.

Are Aberdeen starting to tire?

Ross McCausland's cross is diverted towards goal by Dons defender Nicky Devlin, but Dimitar Mitov is sharp down to it.

The offside flag denies Rangers a goal out of nowhere as Ross McCausland taps in at the back post.

It was very, very tight but the decision goes against Cyriel Dessers as he raced away to provide the cross.

A quick look at the half-time stats from Tynecastle.

Hearts have had 71% possession, and have made 248 accurate passes. Kilmarnock have put together just 72 accurate passes.

However, Hearts have had nine shots and Killie have managed six.

That penalty save has done little to inspire Rangers as Jack MacKenize drills one from 20 yards.

Jack Butland beats it away. Rangers need half-time badly and they've got four additional minutes to wait.

St Johnstone forward Benjamin Kimpioka has scored five goals in the Scottish Premiership this season.

That puts him level with Aberdeen's Pape Habib Gueye at the top of the goalscoring charts.

Image source, SNS

Tom English
BBC Scotland's chief sports writer on Sportsound

We used to talk about the gap between Celtic and Rangers, now we're talking about the gap between Aberdeen and Rangers.

Aberdeen look so far ahead based on this performance.

Tyrone Smith
BBC Sport Scotland at Pittodrie

That penalty miss has taken the wind out of the home crowd.

A huge let-off for Rangers, who are really reeling.

A poor, poor penalty from Jamie McGrath is gathered by Jack Butland!

How big a moment could that prove to be?

Hearts have the lead at the break thanks to Alan Forrest.

The winger was brought back into the team after impressing in his cameo appearance against Hibs on Sunday.

Hearts have linked up really nicely, playing most of the game in the Kilmarnock half, but they've been a little hesitant in pulling the trigger.

The visitors have had some chances of their own when they've countered.

Image source, SNS

It's all square at the break at Tannadice.

Dundee United have been the better side, but trailed after a nicely worked free kick which ended up with Motherwell winger Tawanda Maswanhise side-footing home.

But United hit back when Kristijan Trapanovski's cross was headed in by Sam Dalby.

The home side should have added to their lead but had two efforts blocked on the line. Still all to play for.

Image source, SNS

Benjamin Kimpioka put the visitors in front with an improvised finish on nine minutes, before having a tidy second goal ruled out ten minutes later.

St Mirren found their leveller in stunning fashion, with Scott Tanser’s terrific curling strike giving St Johnstone keeper Ross Sinclair no chance.

Image source, SNS

Yes, it's a spot-kick for the Dons. John Souttar's arms are out like an aeroplane as he crouches and misses his header.

Big call for an Aberdeen penalty as the ball strikes the arm of John Souttar.

Referee John Beaton is off to the monitor.

The Rangers defender was attempting to block a Topi Keskinen shot with his head but it's rocketed off his arm.