St Mirren starting to apply real pressure here.

Declan John picks out Malik Dijksteel at the back post, but his header was poor and bobbled harmlessly wide.

Lawrence Shankland now being replaced with Frankie Kent. That's six defenders on now for Hearts.

Allan Preston
Former Hearts midfielder on BBC Sportsound

Hearts will go to a back three.

Triple change for Hearts. Claudio Braga, Alexandros Kyziridis and Blair Spittal are off after hearty efforts.

Jamie McCart, Tomas Magnusson and Pierre Landry Kabore are on. That hints at a defensive change.

Kieran Tierney is back on and appears okay, much to Celtic's relief.

And Steve Clark as well - the Scotland head coach is in the stands.

Wrong decision, Killian Phillips.

The St Mirren midfielder is picked out in the box but opts to shoot instead of laying the ball off to an unmarked teammate.

He only finds the side netting.

Postpublished at 21:12 GMT 14 January

21:12 GMT 14 January

Falkirk 0-1 Celtic

There is real concern for Celtic defender Kieran Tierney, who is down in a heap in the box.

I think he got a bit of a bash in the face and the physios are mopping up some blood. He is concious though.

That's as close as St Mirren have come.

From a corner, Declan John picks out a mix of Alex Gogic and Dan Nlundulu and between them they glance it just past the post. Inches away.

A brilliant driving run from substitute Louie Marsh has Celtic scrambling and he is chopped down.

The Bairns can't make the most of a free kick. Celtic have very little control of this game.

Allan Preston
Former Hearts midfielder on BBC Sportsound

They have deserved that. They have had the better chances.

It is a wonderful finish. What a goal for Shankland.

If I know Derek McInnes as I do, I think he will bring a few on in defence.

Midfield duo Reo Hatate and Luke McCowan are on for Celtic in place of Yang Hyun-jun and Sebastian Tounekti.

Falkirk throw midfielder Louie Marsh and striker Ben Parkinson on for their debuts.

Finn Yeats and and Barney Stewart make way.

St Mirren make a double change. Malik Dijksteel and Dan Nlundulu are on, replacing Conor McMenamin and Oisin Smyth.

Those are certainly attacking changes by visiting boss Stephen Robinson.

Shamal George - what a save!

Claudio Braga steals the ball on the left and plays a brilliant first time cross to pick out a sliding Lawrence Shankland, but the St Mirren goalkeeper makes a superb save to deny the Hearts captain.

Hearts go close again - and once more it's Alexandros Kyziridis.

Harry Milne bursts down the left and pulls it back to Lawrence Shankland, who gets it out of his feet and finds the Greek winger.

Kyziridis is able to take a touch away from the defender and fire at goal, but it takes a deflection and goes just wide.

John Collins
Former Celtic midfielder on BBC Sportsound

Celtic are moving it quicker now.

Their passes are a little sharper.

Allan Preston
Former Hearts midfielder on BBC Sportsound

St Mirren have to play at a pace 10-man Hearts can't handle.

But, at the minute, they aren't doing that.

It would be a missed opportunity if they don't win the game.

Celtic centre-half Liam Scales taps home from five yards out, but Daizen Maeda is well offside in the build up.

The striker probably should have headed in from the free kick in the first instance!

Set-pieces are Celtic's most likely source of chances at the moment, which is not what you expect.

Allan Preston
Former Hearts midfielder on BBC Sportsound

An indifferent performance by the referee.

If it was not for VAR, Beni Baningime would have been on a yellow card, which would have been a disgrace.