The visitors are searching for a spark and a way back into this pulsating encounter. Sam Nicholson thinks he's the man to revive the Jambos as he drifts in from the left but his rasping drive is well saved by Craig Gordon.

An impressive Celtic move sees Patrick Roberts collect Mikael Lustig's pass before the winger, chasing a hat-trick, send a shot straight into the arms of Neil Alexander. 

Seventh-placed Dundee haven’t won in the Premiership since 12 February, but are only three points behind Ross County – one slot above them – having played a game fewer. 

The Staggies haven’t lost this fixture in almost five years, but were thumped by Highland rivals Inverness CT in their last outing.

Leigh Griffiths is straining every sinew in search of a goal this afternoon. The striker gallops onto a pass from Nir Bitton but is denied by Hearts skipper Ozturk. Not to be denied, Griffiths bears down on Hearts keeper Neil Alexander and blocks the keeper's attempted clearance but watches helplessly as the ball squirts past the post and out for a goal kick!   

Juanma tries unsuccessfully to pull a goal back for Hearts as the striker is denied amid a sea of Celtic jerseys inside the box. Leigh Griffiths, on the counter for the hosts, tries his luck from distance but his effort is well wide of Neil Alexander's goal.

The hosts extend their lead courtesy of a superb finish from winger Patrick Roberts. A Celtic counter-attack sees Stefan Johansen tee up Roberts whose angled drive speeds beyond the diving Neil Alexander.  

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Stefan Johansen earns a corner for Celtic and Prince Buaben clears Dedryk Boyata's header off the line from Patrick Robert's delivery to deny the hosts a third goal.

The second half is under way!

Referee Bobby Madden says there's no time for the Celtic corner after Alexander denied Griffiths. The whistler brings a pulsating first half to a close. Hearts will be rubbing their eyes in disbelief as they trail at the break. 

Jamie Walker's howitzer has been cancelled out by goals from Gary Mackay-Steven and Patrick Roberts. Leigh Griffiths has peppered Neil Alexander's goal without success.

Juanma has spurned opportunities for the visitors and you sense there are more goals in this fascinating encounter.

Stefan Johansen spurns a great chance to extend Celtic's lead as the midfielder, clear on the edge of the box, delays his pass to Patrick Roberts instead of shooting and Hearts recover.

Seconds later, Neil Alexander tips over a fierce Leigh Griffiths free-kick.

Three minutes of added time at the end of a pulsating first half. Nir Bitton replaces a sheepish-looking Tom Rogic as the Australian has failed to recover from that clash-of-heads with Juwon Oshaniwa.

Referee Bobby Madden takes on the Senator George Mitchell role to restore calm as Leigh Griffiths and Prince Buaben are booked for locking horns on the centre circle.

Juwon Oshaniwa has a Basil Fawlty-style bandage on his head following a clash of heads with Tom Rogic. The Hearts defender is also booked. We'll keep you posted if he starts mumbling "yes, dear.." and "Morning, Major..."

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Celtic have come from behind and Hearts must be wondering what's hit them? Minutes after Juanma blazes over from six yards, Celtic pounce on a mistake by Oshaniwa enabling Tom Rogic to thread a ball into the path of Patrick Roberts and the winger flicks the ball over Neil Alexander into the net.