Celtic are in front and John Guidetti nets his first goal since joining the club on loan from Manchester City. The Swede was nicely played to volley the ball in following a poor defensive header from Danny Wilson.

The ball sits up perfectly for Scott Brown to batter in a half-volley from the edge of the box but Hearts stopper Neil Alexander is equal to it.

Some frantic Hearts defending blocks Kris Commons' route to goal. After enduring some early Hearts pressure, the hosts are really starting to dictate play.

Hamilton rested experienced pair Dougie Imrie and Jason Scotland for the visit of Motherwell with Louis Longridge and Eamonn Broph earning starts.

The Steelmen also make two changes - Jack Leitch and Lionel Ainsworth come in for Simon Ramsden and Zaine Francis-Angol.

Three changes for Dundee United. Stuart Armstrong,Blair Spittal and Nadir Ciftci all start. Gary Mackay-Steven, Chris Erskine and Mario Bilate drop out.

Luka Tankulic and Martin Boyle replace Gary Harkins and Philip Roberts in Dundee's line-up.

We've replaced our video stream of Celtic v Hearts following our earlier technical problems. Please refresh your page to access it through the 'Live Coverage' tab or visit:

http://www.bbc.co.uk/sport/0/scotland/21808550

John Guidetti ghosts in behind Hearts defender Alim Ozturk and has the goal at his mercy but directs his shot wide. Great chance for the striker to net his first Celtic goal.

Jamie Walker certainly gets a hold of his shot from the edge of the Celtic penalty area but Stefan Johansen deflects the ball out for a corner.

Dundee United: Cierzniak, Watson, Fojut, Morris, Dillon, Paton, Rankin, Armstrong, Dow, Spittal, Ciftci. Subs: Szromnik, Spark, Smith. Mackay-Steven, Telfer, Bilate, Erskine.

Dundee: Letheren, McGinn, McPake, Konrad, Irvine, McGowan, Ferry, Stewart, McAlister, Tankulic, Boyle. Subs: Bain, McBride, Clarkson, Wighton, Kerr, Roberts, Harkins.

Celtic forward Anthony Stokes cuts in from the left and nicks a shot just wide of Neil Alexander's right-hand post.

You will be able listen to online only commentary of Dundee United v Dundee via the 'Live Coverage' tab.

Hoping to bring you team news from Tannadice soon.

An early booking for Celtic's Jason Denayer after he takes out Osman Sow.

Some early action for Celtic goalkeeper Craig Gordon, who races off his line to kick the ball to a team-mate after Osman Sow chases a long ball.

We appear to be experiencing some technical difficulties with the audio track on our video stream of the Celtic v Hearts match. Please bear with us, the issue is being investigated.

Hearts begin the match in Glasgow.

A minute's applause takes place at Celtic Park as a mark of respect for former Celtic player John Divers and Hearts supporter Gordon Wilson.

John Divers sadly passed away this morning and 43-year-old father of four Gordon Wilson took ill during the first half of Hearts' game with Cowdenbeath at the weekend and was pronounced dead on arrival at hospital.

Celtic may have won the last eight meetings with Hearts by an aggregate score of 28-2 but the Edinburgh side are aiming for a hat-trick of League Cup wins in the east end of Glasgow.

A Michael Stewart penalty gave the Jambos a 1-0 victory in 2009, while a double from Andrius Velicka earned the visitors a 2-0 triumph in 2007.

Celtic have not won this tournament since 2009 and have twice been beaten finalists since then. Last season saw the Glasgow giants toppled at home by Morton.

Hearts, who last lifted the trophy in 1962, missed out on a place in last year's final following a penalty shoot-out with Inverness, who were down to nine men before levelling for extra-time.

Aberdeen, Hibernian, Partick Thistle, Rangers and St Johnstone secured their places in tonight's quarter-final draw last night.

Highlights of last night's games will be available on the BBC website soon.

Kick-off at Celtic Park in around five minutes.