Owen Elding's goal is the only thing separating these two at the break.

Hibs looked good value for their lead but grew sloppy after scoring and Thistle might feel frustrated not to have taken advantage.

Elding had an opportunity at the end of the half to extend the hosts' lead when he smashed his shot off the crossbar but they haven't troubled Thistle goalkeeper Liam McFarlane too much.

All to play for in the second half.

Image source, SNS

Little of note from Ochilview as we reach the interval.

Stenhousemuir started strongly and will be frustrated not to have grabbed an opener before Motherwell found their footing and grew into the game.

Scrappy to say the least.

Decent chance for Inverness and Adam MacKinnon.

The midfielder collects the ball after a corner is headed away. He almost has to pause as referee Calum Scott gets out the way, but still gets his shot off - but it flies just over the bar.

An end-to-end game has broken out now, Stenhousemuir's dominance has waned.

We're yet to have a clear-cut chance, mind you.

Owen Elding takes a touch and cannons an angled shot off the crossbar.

Nathan Lowe then tries to find a team-mate in the Thistle box but the visitors manage to scramble clear.

Scott Allan
Former Hibs midfielder on BBC Sportsound

Hibs' intensity has dropped right off since they got the goal. They have let Thistle back into the game with some sloppy passing.

Inches away from a second goal for Hearts.

Amadou Ba-Sy takes a brilliant touch in the box, after making a good run in behind the defence. He holds off the defenders and cuts the ball back to Sabah Kerjota, but the winger can only clip the crossbar from just six yards out.

A succession of three Motherwell corners come to nothing, despite home goalkeeper Darren Jamieson flapping at the first one.

Each time, the visitors tried a short routine or a drilled low ball in, but none came off.

Kheredine Idessane
BBC Sport Scotland at Ochilview

We're well over halfway through the first period and it's the Championship side who've been on top so far.

Stenny keeper Darrien Jamieson has had absolutely nothing to do, while his opposite number Matty Connelly has been far busier.

'Well have been really scrappy in possession. The fringe players being given a chance to shine are failing to do so thus far. I suspect Alfred Johansson will send for the cavalry at the break if things don't improve.

Good from Stenhousemuir, though, fair play.

Image source, SNS

Jack Iredale, attempting to clear, gives the ball straight back to the visitors but Seb Drozd's shot from the edge of the box is high over the crossbar.

Hearts work a set-piece move from a corner on the left and the ball is played to Calvin Miller.

He's on the penalty spot, with tonnes of time, but he fluffs the shot completely. Huge chance for a second goal for the hosts.

It looks like Gordon Strachan is getting some tactical advice from author Irvine Welsh, with actor Dougray Scott looking on.

That chat would make a good Fringe show.

Image source, SNS

Motherwell take too long on the ball in their own penalty box and Stenhouemuir almost steal take advantage.

Lewis Hodgkiss ghosts in but can't turn an Andrew Shinnie cut-back over the line before the referee peeps his whistle for a foul in the build-up.

Only one team looks like scoring so far.

Thistle win a free-kick in line with edge of the Hibs penalty box on the left and Aidan Fitzpatrick swings it towards the back post but Raphael Sallinger comes out to punch it away.

The rebound is blocked and then turned behind for a Hibs goal kick.

Brian McLauchlin
BBC Sport Scotland at Tynecastle

An unusual opening to the game... Goal disallowed by VAR for offside, penalty awarded then overturned by VAR, then a full-back scoring with a looping header. Not a bad opening quarter.

Kheredine Idessane
BBC Sport Scotland at Ochilview

Home boss Marvin Bartley will be delighted with the calm, composed start his side has made to this tie.

Four corners in the first 13 minutes and most of the play in their opponents' half.

The eight changes are showing for Motherwell who look a bit disjointed so far, and struggling to find their feet on the artificial surface.

Amy Canavan
BBC Sport Scotland at Easter Road

There’s a bit of concern for one of the home supporters just in front of the press box.

The paramedics from behind the Hibs dugout have been called upon, as has the Hibs doctor.

A worrying sight.

The VAR Don Robertson has ruled that there is contact, but it's outside the box.

Graeme Shinnie is still shaking his head. He thinks it was a dive.

Either way, it's a Hearts free-kick.

Amadou Ba-Sy skips away from a few defenders and goes down right on the edge of the box.

Calum Scott, the referee, takes his time over this.

Is it in the box? Is there even contact?