As it stands, both Celtic and Rangers are going to be eating into Hearts' lead at the top of the Premiership.

David Watson drives forward on the break for Kilmarnock and feeds the ball out wide for the advancing Scott Tiffoney.

The midfielder gets it out of his feet and has his powerful shot tipped over by Celtic goalkeeper Kasper Schmeichel.

Luke McCowan's acrobatic volley is deflected behind for a Celtic corner, but the home side can't make anything of it.

United thought they had a second!

It's sensational from Zac Sapsford as he runs in behind and completely skins the defender in the box.

He lays it on a plate for Amar Fatah to finish. The lineman's flag went up against Sapsford though.

VAR confirms the Australian went just too early!

Stephen Craigan
Former Motherwell captain on Sportsound

All the momentum and energy is coming from Dundee.

This is turning into a basketball game.

Brilliant play from Luca Stephenson tees up Panutche Camara, but the United midfielder completely sclaffs his shot from the edge of the area.

He had more time there.

Another comfortable stop for goalkeeper Jack Butland as Simon Murray finds room in behind the Rangers defence but can't get any power on his strike.

Brian McLauchlin
BBC Sport Scotland at Tynecastle

A massive 25 minutes here at Tynecastle with the home fans seeking nothing other than all three points.

And, now that record signing Ageu has made his way on to the pitch, those expectations will have been raised even more.

But Dundee United look very dangerous when they drive forward and the small group of travelling fans are in full voice as they feel they can snatch a winner here. Great game!

Claudio Braga and Hearts are screaming for a penalty here as the forward steams into the box and then hits the turf.

It looked a really strong shout, but after looking at a replay, it's clear Braga initiates the contact with defender Bert Esselink.

Dundee pack the Rangers penalty area for a free-kick, but Yan Dhanda goes for glory and the midfielder's strike is easily gathered by goalkeeper Jack Butland.

Killie have been largely terrible today, but they are almost level.

Bruce Anderson runs onto a long ball over the top and the striker thunders a left-footed shot off the bar.

How on earth is it only 1-0?

Kilmarnock goalkeeper Eddie Beach makes a complete mess of a Sebastian Tounekti shot from range, it breaks to Daizen Maeda five yards out, but the Celtic winger somehow misses an open goal.

He doesn't really manage any contact on the ball.

Hearts make a change in midfield. Record signing Ageu replaces Tomas Magnusson.

United forward Amar Fatah is booked for diving in the box as he goes down as Tomas Magnusson challenged him.

It's never a penalty, but Fatah jumps back to his feet, so not sure he was diving.

John Beaton the referee was right there though and feels it was simulation.

Motherwell somehow manage to work the ball into the area, tackling their way to the back post, where striker Callum Hendry volleys over!

They've got the wind in their sails now.

Here comes Dundee skipper Simon Murray, along with Yan Dhanda.

Emile Acquah and Dray Wright are off.

Surely Murray will add a bit more bite for the hosts, who have offered so little so far.

Hearts substitute Stephen Kingsley curls a free kick just over the top of the bar.

This game could still go either way!

Dundee goalkeeper Jon McCracken is busy again, blocking a low effort from Djeidi Gassama.

United are carrying a threat on the break.

Panutche Camara slides a perfect ball to Amar Fatah. The winger jinks in from the left and tries to bend the ball into the top corner.

But he curls it into the stand instead.