Fin Robertson has a dig from long range, but it's easy enough for Dave Richards in the United goal.

End-to-end stuff now.

A further blow to Kilmarnock's hopes as David Watson is red carded for an ugly challenge on Hibernian's Dan Barlaser.

The midfielder catches Barlaser with the studs as his foot lands and is shown a straight red.

Dundee substitute Fin Robertson absolutely clatters Craig Sibbald in midfield, but the officials wave play on.

There are 12 minutes left at Tannadice - will Dundee hold on to their slim lead?

That was Elie Youan's last contribution. He's replaced with Rudi Molotnikov.

The final Hibs substitution is Kieron Bowie on for Thibaut Klidje.

Hearts midfielder Beni Baningime is down clutching his ankle after a challenge by Emmanuel Danso.

The new signing has barely been on the pitch and VAR is checking whether or not he should be sent off.

Play on, is the call. Baningime is ok to continue.

Dundee are living so dangerously.

Amar Fatah wriggles away from a couple of tackles and puts it on a plate for Zac Sapsford, but the striker opts to take a touch that allows Yan Dhanda to get back and clear.

Here come the first Motherwell changes of the game. Oscar Priestman and Tom Sparrow are on, goalscorers Elliot Watt and Tawanda Maswanhise make way.

Derek McInnes is furiously gesturing at his players to up the tempo as the hosts struggle to keep the ball.

New signings Emmanuel Danso and Joshua Zimmerman are on for their Livingston debuts.

Luca Stephenson and the majority of Tannadice cannot believe it's not 1-1.

From close range, the red-haired midfielder sweeps a low shot towards the bottom corner, but goalkeeper Jon McCracken reacts brilliantly to get down to his right and turn it round the post.

Off the post!

A cross from the right is met by Aberdeen striker Kevin Nisbet, but his header only glances the outside of goalkeeper Scott Bain's right-hand post.

United are really pushing for an equaliser now.

Pan Camara arrives late in the box, but the midfielder's goal-bound volley is well blocked.

Killian Phillips lashes a ball from the edge of the D, it ricochets off a Motherwell body and out for a corner.

Although the initial ball is cleared, there's a bit of a scramble in the box before Motherwell rid the danger.

Brian McLauchlin
BBC Sport Scotland at Tynecastle

There is a nervousness emanating from the home support that the players look as if they are beginning to sense.

Livingston have been excellent in the second half and arguably should be on level terms.

An interesting last quarter looms at Tynecastle.

Another couple of changes for the Buddies as they look to work their way back into the game.

Malik Dijksteel and Roland Idowu are on now for St Mirren.

Mikael Mandron and Jayden Richardson make way.

United are awarded a corner despite the ball not crossing the goal-line.

Krisztian Keresztes heads just wide from the set-piece and Dundee breathe a sigh of relief.