A rare opportunity for St Mirren as they pour down the right.

Calvin Ramsay is slipped in and goes one-on-one against Beau Reus, but the big keeper makes a fine save.

Hearts then go up the other end and Sabah Kerjota's cut-back does not pick anyone out.

Findlay Curtis replaces Kevin Kelsy for Rangers, while Nicky Clescenco is on for Killie as Erik Ring makes way.

A bit of a lull in proceedings at Tannadice after such an enthralling 65 minutes, it's been around 10 minutes since there's been a shot on goal from either side.

In other news, a seagull has managed to pinch someone's pie.

Image source, SNS

There was a suspension of the Scottish Championship match between Arbroath and Greenock Morton because of a medical emergency but the match has now resumed.

There is still around six minutes of the first half to play.

The chances continue in this one, as Dundee goalkeeper Owen Goodman makes a solid save from a Ben Krauhaus effort.

That's the attacking midfielder's last involvement as Ben Parkinson comes on in his place.

Daniel Bennie's turn to have another crack at goal.

He goes for it first time from the edge of the box when he should probably take it in closer to goal, or at least take a touch.

Both teams are in double digits for shots now.

This is going to be some finish at the Falkirk Stadium. Right after Dundee's goal is disallowed, Jacob Murrell comes close again for Falkirk.

Joe Bevan up the opposite end has a long-range strike turned away by Scott Bain.

Callum Wright fizzes it across the box for Felix Passlack but his attempt is blocked before it troubles the Dundee United goal.

The German's shot from distance after a corner is then dealt with similarly.

Claudio Braga is down in the box holding his face after trying to steal the ball from Alex Gogic. Referee Nick Walsh waves it away.

The replay does show that Gogic catches the Portuguese forward. Perhaps just a football collision.

Wouter Vrancken isn't happy and has just been booked by Nick Walsh.

Martin Dowden
BBC Sport Scotland at Ibrox

Rangers are comfortably ahead but it's been pretty much all Kilmarnock in this second half.

They've had so many incredible chances but just cannot find the net.

At half-time, the assumption was this would be a canter for Rangers but not so - far from it.

Killie are showing admirable fight and creativity, if lacking clinical finishing.

Image source, SNS

Greg Kiltie HAS to score for Kilmarnock.

It's cut back to him on the penalty spot but he slides his shot wide.

It's frankly ridiculous the amount of chances the visitors have squandered.

No reprieve for Dundee and Bradley Fink. The disallowed goal stays disallowed after a VAR check.

Bradley Fink fires a shot into the back of the net for Dundee, but the joy is short lived as the goal is disallowed for offside.

It's being checked...