Oh, that's a chance.

Great work again down the left from Jordan Jones, who rolls a ball into the box.

Greg Kiltie meets it first time but blazes over. A late challenge from Andy Halliday follows but Bobby Madden isn't interested.

Really good play down the right from St Mirren, who win a corner.

The ball is deep and plants on Eamonn Brophy's head at the back post, it's blocked.

The ball is worked back in and Charles Dunne heads it across goal, but Hearts survive.

St Mirren are asking questions here.

Again Hearts need to deal with a ball into the box and again Scott Tanser is following up.

A big touch takes the full-back into the box and his strike is blocked once more.

Hearts race up the other end and Ellis Simms is slipped down the right.

The striker's effort ends up going out for a throw.

St Mirren have responded well as Hearts need to clear a corner and a long throw.

The ball breaks to Scott Tanser who absolutely leathers a half-volley from about 20 yards.

It pings off a couple of bodies and is cleared to safety. St Mirren shout for a penalty for handball, nothing given.

Leanne Crichton
Ex-Scotland international on BBC Scotland

A bit of sustained pressure from Hearts results in Peter Haring teeing up Liam Boyce, whose shot from the edge of the box trickles into the arms of Jak Alnwick.

St Mirren needing to dig in a bit here.

Nathaniel Atkinson breaks up the left and sees a cross deflected.

Barrie McKay then tries to deliver from the left, but St Mirren clear.

Hearts keep coming, though, as Charles Dunne makes a vital intervention to stop Liam Boyce's cross reaching Ellis Simms.

This game is swinging end to end as Liam Boyce tries to thread a pass through to Andy Halliday.

Too much on it and Halliday was probably offside anyway.

Scott Tanser makes a yard for himself brilliantly, but his cross from the left is overhit.

The visitors have started well at Tynecastle.

Up the other end, Jak Alnwick is tested for the first time.

The ball breaks favourably for Barrie McKay after a one-two with Ellis Simms.

The forward rattles one straight at Alnwick, who gets two strong hands behind it.

Jordan Jones feeds Eamonn Brophy on the left of the Hearts box.

The striker turns well and flashes one low towards the far corner, but Craig Gordon holds.

Jordan Jones skips past Ben Woodburn on the left, but the Liverpool loanee recovers well with the St Mirren winger sprinting down the wing.

Good start to this cup tie.

Ouch!published at 4 mins

4 mins

Hearts 0-0 St Mirren

There's blood running down the face of Craig Halkett after a clash of heads with Eamonn Brophy.

The last thing Robbie Neilson needs is another player added to his injury list.

The centre-back is patched up and ready to go again.

Image source, SNS

Ellis Simms is next to stretch his legs as he attempts to get onto a ball in behind.

The on-loan Everton forward can't keep the ball in, though.

Liam Boyce wants a corner as he attempts to latch onto a dodgy header from Scott Tanser.

Goal kick given.

Referee Bobby Madden blows the first whistle and we're off.

Send on the drama.

Image source, SNS

The players are out. Both sides in their home kits.

Shelley Kerr
Former Scotland head coach on BBC Scotland