Worrying signs for Dundee United as Charlie Mulgrew limps off. Logan Chalmers had just traipsed on as United's third sub.

It means they'll finish the game with 10 men.

Connor Shields looks to provide his second assist of the afternoon with a perfectly weighted ball across the box to Kaiyne Woolery.

Woolery's first touch lets him down as it bounces off him and goes out for a goal kick, a bit more composure and Motherwell would have had their third.

It's a great game at Tynecastle now.

Peter Haring almost restores Hearts' two-goal lead but heads just past the far post.

Then County go forward again and Jordan White is inches away from getting to a cut-back.

Matt Macey makes his first meaningful save of the afternoon to tip Nicky Clark's effort round the near post.

Some life left in Dundee United, it seems.

Ooofft! Ethan Erhahon looks like he's got away with one there.

It's unintentional but the St Mirren midfielder's studs connect with James Tavernier's upper thigh.

Moments later, Rangers captain Tavernier rattles a half-volley but Jak Alnwick parries to safety.

Kevin van Veen collects the ball on the edge of the box and rolls it into Sean Goss on the overlap. Max Stryjek once again keeps his side in it with a reflex save with his feet.

The ball has spent the majority of this half being launched from end to end with chances few and far beween.

Marley Watkins limps off for Aberdeen after picking up a knock. Niall McGinn is the man coming on.

It's back to being all Hibs at Tannadice. Josh Doig and Chris Cadden have been playing really well on either flank for the visitors.

Both get another cross in each but to no avail.

Jamie Murphy has replaced Drey Wright for Hibs while Declan Glass has come on for Chris Mochrie in the United midfield.

David Martindale tries to freshen up his side by introducing Bruce Anderson for Craig Sibbald.

Livingston have rarely threatened in attack.

Rangers flood forward on the break.

The move results in Joe Aribo laying the ball back to Scott Wright, who drags an effort wide of the left-hand post.

Michael Smith could have been a hat-trick hero today for Hearts.

After scoring the opener and then passing up a fine opportunity in the first half, the Hearts veteran full-back is a whisker away from getting a head to Ben Woodburn's cross.

Inches away from a Rangers third.

Scott Wright drills across goal, smashing the ball off the far post. The rebound falls into the path of Borna Barisic, who hammers over from the edge of the box.

Hearts aren't quite as dominant in this half and Ross County sense an early goal could shake things up at Tynecastle.

The visitors break at pace through the middle and only Alex Cochrane's leg takes the sting out of Joseph Hungbo's shot as goalkeeper Craig Gordon saves.

Kenny Crawford
BBC Sport Scotland at Tannadice

Early in this second half and already there’s clear evidence of more intent and bite about the hosts. Ian Harkes has put in a couple of crunching tackles and Nicky Clark has at least tested goalkeeper Matt Macey.

Ilmari Niskanen coming on has injected a bit of creative purpose into United.

Kaiyne Woolery digs a cross out from the byeline and it drops kindly for Sean Goss.

Livingston defender Ayo Obileye valiantly gets his body between the ball and the keeper to prevent what would be a certain goal.

Dundee have certainly competed in this match but they are struggling to get the ball to stick in attack.

The Leigh Griffiths goal remains their only shot of note so far.

Teddy Jenks makes way for Connor McLennan as Aberdeen switch things up.