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By Colin Moffat
2200: That's all from me folks. Thanks to all of those who chipped in with comments on a twisty-turny night of SPL action. Remember, you can see highlights of both games on this website from midnight, so don't go sneaking off to bed just yet.
2156: "Hearts record against the Old Firm is hardly something to feel confident about... I say United still look like the 3rd place team at the end of this." GonnaeNoDaeThat is predicting an exciting finale to the season. Join the debate on My Sport
2153: "There will be Hibs flags flying tonight anyway!"a delighted Barry in Edinburgh, via text on 80295, has the last word on the great flag debate.
2150: Full-time: Dundee United 1-1 Aberdeen Craig Levein's side edge one point behind third-placed Hearts thanks to David Goodwillie's cracking header, which came soon after Lee Miller's nice volleyed opener for Aberdeen.
2148: We're into stoppage time at Tannadice. It looks like United have run out of steam and ideas.
2145: "(Re 2135) I wouldn't say "derail" that indicates it's no longer possible. If anything it's a minor disruption. Dundee Utd still have to play both Celtic and Rangers while Hearts only have to play Celtic (on the last day of the season too, where the title could already be decided)." points out Man Utd - Jambo on My Sport. Join the debate on My Sport
You're right sir, perhaps 'dent' would have been a better choice of words...
2143: Referee Chris Boyle is having a shocker at Tannadice. He's lost his marbles and is holding up play to randomly shout at players, like a teacher on the edge of a breakdown on a rowdy school trip.
2139: David Goodwillie scorches a shot in at Jamie Langfield's near post but the Dons keeper gets fingertips to it. The United youngster might have been better squaring to Warren Feeney, who has just come off the bench.
2138: Dundee United have ten minutes to grab a winner against 10-man Aberdeen and leapfrog Hearts.
2135: Full-time: Hearts 0-1 Hibernian The makeshift visitors record an unlikely win to derail Hearts' hopes of finishing third. Can Dundee United take advantage?
2132: Craig Conway crashes a wonderful free kick against the post and a scramble in the penalty box ends with the ball being scooped high over the crossbar by a United man.
2131: RED CARD: Aberdeen's Mark Kerr is sent packing for giving referee Chris Boyle an earful of abuse.
2130: Hearts are doing a lot of huffing and puffing and Hibs are retreating dangerously deep as they look to withstand the onslaught.
2128: "As a Don I find the irony of N&C equalling distress highly amusing - Nicholl and Calderwood - what signal do you fly to make them leave?" The flag chat just won't stop as Biscoback chips in on My Sport. Join the debate on My Sport
2126: "It's a certainty to finish 1-1, as I've just said there's a winner in it for one of these sides" BBC Scotland pundit Billy Dodds tempts the gods who look after the commentator's curse.
2125: "When the flag of a country is flown upside down this denotes an official state of anarchy in the country. The heraldry (flag knowledge) guy in Edinburgh, via text, continues on the hot topic of the night.
2124: Danish striker Mike Tullberg comes on for the ineffectual Calum Elliot as Hearts search for a way back.
2121: United's Craig Conway does well to break free and power down on goal, but fires a weak shot straight at Jamie Langfield.
2120: An idiot runs on to the pitch to protest the penalty at Tynecastle and Hearts skipper Robbie Neilson lends a hand to the stewards ushering the pea-brained numpty away.
2119: GOAL - Hearts 0-1 Hibernian Christos Karapidis is SENT OFF for a shove on Derek Riordan and the same player picks himself up to calmly roll the resulting penalty into the corner of the net.
2117: Joe Keenan is on for Alan O'Brien. Is that Hibs shoring up or simply recognising that the Irish winger is not much of an attacking threat?
2115: Derek Riordan is caught offside for the sixth time tonight as he gets in a shot that is well saved by Marian Kello, who can't have seen the linesman's flag.
2114: Skipper Scott Severin rattles the side-netting from close range as Aberdeen pile on the pressure. Craig Conway is on for United, replacing Danny Swanson.
2113: "(Re 2045) - An upside down flag doesn't mean anything! The only flags that indicate a distress are "N" and "C" when flown together." Our Coastguard from Aberdeen settles the issue via text on 80295.
2110: Aberdeen winger Sone Aluko gathers the ball in his stride on the edge of the United penalty area but fluffs an opportunity to score by hooking a half-volley well wide of the mark.
2109: Hibs are temporarily down to ten men as John Rankin gets treatment for a bloody nose. He comes running back on with cotton wool stuffed up both nostrils.
2107: United keeper Lukasz Zuluska has to scramble to tip away a deflected Sone Aluko cross that was dipping in under his crossbar.
2106: Lee Wallace slips a cute pass to Calum Elliot in front of the Hibs goal but the striker shoots wide under pressure from Steven Thicot.
2102: Hearts winger Andrew Driver lashes in a fierce, angled volley and Yves Ma-Kalambay makes a great one-handed stop at his near post.
2100: We're off again at Tannadice.
2057: David Obua races to the other end and fires a low delivery across the face of goal, which somehow eludes both Calum Elliot and Christian Nade.
2056: A neat flick from Derek Riordan finds Alan O'Brien but the Irishman scuffs his shot wide.
2054: The first yellow card of a tame Edinburgh derby is shown to Lewis Stevenson for upending Bruno Aguiar. The Hearts player soon loses our sympathy by waving his own imaginary card at the wee Hibs midfielder.
2053: "Come on Aberdeen! I doubt we will make Europe, but at least we can put to bed this ridiculous win drought we have suffered at Tannadice." Scotlands12thMan knows his team haven't won a league game away to United since 2005. Join the debate on My Sport
2050: "Tynecastle isn't full but, I tell you what, it's noisy." BBC Radio Scotland commentator Paul Mitchell.
2049: Hibs defender Ian Murray makes an excellent interception to prevent Calum Elliot collecting a Bruno Aguiar pass in the penalty box.
2047: We're off again at Tynecastle. Let's hope for a better second 45 minutes in Edinburgh.
2046: Half-time: Dundee Utd 1-1 Aberdeen United were the better team for half an hour without threatening too much and responded well once they fell behind.
2045: "(Re 2025) - An upside down flag is not a recognised sign of distress as per the International Code of Signals."An Aberdeen coastguard informs us via text, without telling us what it does stand for.
2043: "YAAAAAAAAS! Goodwillie is such a vital player for us... lalalalalala." grantybaz retaliates on My Sport. You can't beat the childish retort. Join the debate on My Sport
2042: "Goodwillie has been lively the whole game. He's running everywhere. He's shown already that he has a great future - he has super awareness and looks a complete player." BBC Scotland pundit Billy Dodds.
2040: Dons team-mates Richard Foster and Chris Maguire clash angrily and a yellow card is flashed. I'm not sure who it was for.
2038: GOAL - Dundee United 1-1 Aberdeen Prince Buaben switches play with a killer diagonal pass to David Robertson, who crosses for David Goodwillie to crash in an impressive near post header.
2035: "YAAAAAS! Miller is such a vital player for us and again a goal at a crucial time." Tux789 is celebrating over on My Sport. Join the debate on My Sport
2033: GOAL - Dundee United 0-1 Aberdeen After a sluggish start, the Dons stun the home support when Scott Severin heads a corner back across goal and Lee Miller hooks in an acrobatic volley from six yards.
2031: Half-time: Hearts 0-0 Hibernian There's been no lack of endeavour at Tynecastle but both sides lack flare and imagination in the final third of the pitch. Hibs will be the happier side since they are without a host of first-team regulars.
2028: "Dundee United are getting themselves into great positions, but the final ball is a bit disappointing." BBC Scotland pundit and former United and Aberdeen striker Billy Dodds.
2027: Television presenter Lorraine Kelly looks cold in the main stand at Tannadice as she cheers the Terrors on.
2025: (Re: 2012) An upside down flag is a sign of distress... C'mon the Dons! Ev, Cumbernauld via text on 80295.
2024: Aberdeen's Lee Miller, just back from a two-game suspension, earns himself a yellow card for a sly elbow on Darren Dods.
2023: United striker Andis Shala breaks free down the left and flicks a neat ball to David Goodwillie, who has time to pick out a team-mate, but Dons keeper Jamie Langfield watches the cross drift over the bar.
2022: "Huge game for Aberdeen, realistically a loss here will end our season very prematurely. A result here and a victory over Hearts next week and Aberdeen could make the end of the season very exciting." fraz_afc tries to crank up the vibe on a surprisingly dull night so far. Join the debate on My Sport
2019: A shout for a penalty at Tannadice as Aberdeen full-back Charlie Mulgrew appears to handle the ball, but the referee is having none of it.
2018: Hearts make a tactical switch, with striker Christian Nade replacing midfielder Eggert Jonsson. That will be a 4-4-2 for the home side now. The Icelandic international looks none too happy as he aims a frustrated punch at the tunnel wall. That's got to hurt.
2017: Marian Kello has to make a smart punch under pressure as Derek Riordan's vicious in-swinging corner nearly catches the Lithuanian by surprise.
2016: United midfielder Prince Bauben works a neat one-two on the edge of the Aberdeen penalty area with Morgaro Gomis and thunders in a powerful drive that flies over the bar.
2015: The TV cameras pick out Coventry manager Chris Coleman in the Tynecastle stand. He's keeping an eye on Hearts winger Andrew Driver, who has been very quiet so far.
2013: "It's starting to get that Edinburgh derby pettiness about it."says BBC Radio Scotland commentator Paul Mitchell of the stop-start game at Tynecastle.
2012: I could swear the SPL flag at Tannadice is flying upside-down. Some crazy voodoo trick, a mistake from the groundstaff or are my eyes deceiving me?
2010: "Goodwillie more than deserves a start for United, just hope he doesn't get sent off like he nearly did last time out at Pittodrie, where he came on in the 89th minute, got booked and was then very lucky not to get a second yellow." says Cristiano Ronaldo is a poor man's Danny Swanson Join the debate on My Sport
2007: Hibs spring a quick counter-attack and Alan O'Brien sets Derek Riordan up on the edge of the penalty area. Hearts keeper Marian Kello makes a good flying save to tip away the striker's shot.
2004: "There's no real pattern to the game. Hearts started the better but Hibs have found a way to ruffle their feathers." BBC Radio Scotland pundit Craig Paterson.
2002: United striker David Goowillie pings in a smart, angled shot and it shaves Jamie Langfield's right-hand post.
1958: "The game's not really settled down. It's 100 mph and Hibs are defending deeper and deeper." BBC Radio Scotland's resident Jambo cheerleader Allan Preston.
1956: Ian Murray makes a hash of things in his own penalty box and Calum Elliot connects with a scuffed shot on the turn only for giant Hibs keeper Yves Ma-Kalambay to get down smartly and make the save.
1954: Steven Thicot, wearing gloves in early May, is the one Hibs player who looks calm and assured as the game rages on around him.
1951: Hearts are doing all of the pressing, with Hibs looking rather anxious at the back. With Chris Hogg, Sol Bamba and Rob Jones all suspended, the visitors lack height in defence.
1948: The games has started at a whirlwind pace but we haven't had a sniff at goal yet.
1945: We're off at Tynecastle and the ball flies out of touch after three seconds.
1943: It's a far from packed Tynecastle. Not much of a travelling support, while the home section isn't exactly full. Not a great advert for Thursday night football.
Meanwhile, BBC Radio Scotland commentator Paul Mitchell informs us that Hibs have never lost a Thursday night derby, winning five and drawing six.
1941: "Okay, so us Hibees don't really have any chance of getting into Europe. So let's do the next best thing and stop Hearts from getting there too. Lets take three points off them tonight." Macker 100 on My Sport. Join the debate on My Sport
1938: Some early news from Tannadice. There are three changes for the home side with Danny Grainger, James Wesolowski and Warren Feeney dropping out for Paul Dixon, Morgaro Gomis and David Goodwillie. Feeney, who is carrying a groin injury, is named on the bench.
For Aberdeen, Lee Mair and Lee Miller replace Andrew Considine and Tommy Wright. Miller is back from suspension and Considine has a knock.
Mair is one of just two Aberdeen players wearing the old style black and white boots, which has started a heated debate among my BBC Radio Scotland colleagues. Those guys will argue about any subject under the sun!
1935: "It's always a hostile atmosphere here at Tynecastle but hopefully that can spur our young team on," Hibs manager Mixu Paatelainen talks to BBC Radio Scotland.
Lee Wallace returns at left-back for Hearts after a bout of flu, while lone striker Calum Elliot will be boosted by the new three-year contract he signed today.
Hibs have been decimated by injuries and suspension and have a real makeshift look about them. Teenager Paul Hanlon comes in at left-back, while Ross Chisholm gets a rare start in central midfield.
1930: Good evening and welcome to what promises to be another thrilling round in the closing stages of the Scottish Premier League campaign.
The focus is firmly on the race for a place in Europe next season, with Hearts hosting Edinburgh rivals Hibernian and Dundee United welcoming Aberdeen to Tannadice.
Home wins would see the Jambos and Arabs all but secure spots in the fancy new Europa League, while tonight's visitors have to pick up maximum points to keep their hopes of a continental adventure alive.
Both of these contests are traditionally lively encounters, which is simply a euphemism for bonkers-crazy games played out before febrile fans - and that's what we love!
Remember, you can listen to commentary of both matches via this website and highlights will be available online shortly after midnight.
As always, we want your views as the action unfolds, so add your thoughts on
or send us a text on 8029 and we'll include some them.
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