Scottish Cup: Celtic cruise through as Auchinleck stun Ayr - as it happened

Summary

Scott Sinclair scores twice from close range for Celtic after being denied from the spot
Timothy Weah marks debut with goal to make it three for holders
10-man St Mirren come from two goals down to beat Alloa
Mark McGuigan's header earns Stenhousemuir a draw at Aberdeen
Ross County hold on as Brian Graham's double edges out Motherwell
McCracken header gives Junior side Auchinleck famous win

Live Reporting

Clive Lindsay

Burke starts up front for Celticpublished at 17:07 Greenwich Mean Time 19 January 2019
Celtic v Airdrieonians (17:15)
Now we turn our attention to the late kick-off at Celtic Park, where the holders host Airdrieonians.
Are we in for another Scottish Cup shock?
Oliver Burke, the Scotland winger on loan from West Bromwich Albion, goes straight into the home side's starting line-up and it could be he will be played as lone striker.
Loan signing from Paris St-Germain Timothy Weah is on the bench.
Israel midfielder Nir Bitton returns from a long spell out through injury and is also among the substitutes.
Image source, SNS
Image caption,
Oliver Burke is on loan from West Brom
Ochilview double dream lives onpublished at 17:04 Greenwich Mean Time 19 January 2019
FT: Aberdeen 1-1 Stenhousemuir
Stenhousemuir have stunned Aberdeen for a second time.
The Ochilview outfit famously knocked out the Dons in 1995 and will be dreaming of doing so again after Mark McGuigan cancelled out an opener from Max Lowe.
Can they repeat that feat at Ochilview?
Image source, SNS
Well tumble outpublished at 17:00 Greenwich Mean Time 19 January 2019
FT: Motherwell 1-2 Ross County
Ross County arguably caused the biggest upset of the 3pm kick-offs, a Brian Graham double ensuring a deserved win over Motherwell for the Championship side.
Image source, SNS
Two top-flight sides take exitpublished at 16:57 Greenwich Mean Time 19 January 2019
Scottish Cup fourth round
What an afternoon it's been in the fourth round of the Scottish Cup.
It all started with junior side Auchinleck knocking out Championship side Ayr 1-0.
With Celtic still to host Airdrieonians later, two Premiership sides will be absent from the draw for the next round.
Hamilton's defeat by top-flight rivals wasn't a shock, but Motherwell departed the tournament with a whimper, losing at home to Championship leaders Ross County.
It looked like St Mirren would follow them, but the Buddies came from behind to beat Alloa despite being down to 10 men.
Two Premiership sides face replays despite hosting lower league sides - Aberdeen against Stenhousemuir and Dundee against Queen of the South.
Full-time resultspublished at 16:52 Greenwich Mean Time 19 January 2019
Image source, BBC Sport
Image caption,
3pm results
GOAL Montrose 0-4 Dundee Unitedpublished at 16:49 Greenwich Mean Time 19 January 2019
Ian Harkes
Former DC United midfielder Ian Harkes puts the icing on the cake for United with a debut goal in Montrose.
GOAL Motherwell 1-2 Ross Countypublished at 16:48 Greenwich Mean Time 19 January 2019
Jake Hastie
Jake Hastie heads in an Elliott Frear header to give Motherwell some late hope.
GREAT SAVE!published at 16:47 Greenwich Mean Time 19 January 2019
St Johnstone 2-0 Hamilton
Best effort so far from Hamilton as Tony Andreu's shot is beaten away by Zander Clark.
GOAL St Mirren 3-2 Alloa Athleticpublished at 16:46 Greenwich Mean Time 19 January 2019
Kyle McAllister
All of a sudden, St Mirren have turned it round with 10 men and it is the returning prodigal son who puts them ahead.
Kyle McAllister left for Derby County in 2017 but has returned on loan after failing to play for the Championship side to play an important role by firing his side into the lead.
GOAL St Mirren 2-2 Alloa Athleticpublished at 16:44 Greenwich Mean Time 19 January 2019
Ethan Erhahon
St Mirren are back level as 17-year-old Ethan Erhahon scores his first goal for the club.
Graham to fore for Countypublished at 16:43 Greenwich Mean Time 19 January 2019
Motherwell 0-2 Ross County
Brian Graham's double has Ross County heading for a mini shock away to Premiership side Motherwell.
Image source, SNS
GOAL Partick Thistle 4-1 Stranraerpublished at 16:40 Greenwich Mean Time 19 January 2019
Blair Spittal
The Jags are home and dry now as top scorer Blair Spittal pokes the ball home inside a busy penalty box.
Smoke on the, err, plasticpublished at 16:39 Greenwich Mean Time 19 January 2019
Raith Rovers 3-0 Dunfermline Athletic
The game was delayed at Stark's Park, but it couldn't prostpone the agony for Dunfermline.
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GOAL Raith Rovers 3-0 Dunfermline Athleticpublished at 16:38 Greenwich Mean Time 19 January 2019
Lewis Vaughan
It has all gone terribly wrong for Stevie Crawford in his first game as Pars manager - and against the side he famously won the League Cup with.
Lewis Vaughan breaks clear to slot home his third goal of the game.
GOAL Kilmarnock 2-0 Forfar Athleticpublished at 16:35 Greenwich Mean Time 19 January 2019
Chris Burke
Kilmarnock had hardly been threatening, but Mikael Ndjoli speeds down the left to cross for fellow substitute Chris Burke to crack home a volley.
GOAL Raith Rovers 2-0 Dunfermline Athleticpublished at 16:34 Greenwich Mean Time 19 January 2019
Lewis Vaughan
It looks to be curtains for 10-man Dunfermline as Lewis Vaughan scores his second of the game in the Fife derby, assisted by Chris Duggan.
GOAL East Fife 2-1 Greenock Mortonpublished at 16:32 Greenwich Mean Time 19 January 2019
Craig Watson
The home side have come from behind as Craig Watson slams home the loose ball as Morton fail to clear from a corner.
GOAL Partick Thistle 3-1 Stranraerpublished at 16:31 Greenwich Mean Time 19 January 2019
Steven Saunders
Breathing space for Thistle as Steven Saunders heads in from Stuart Bannigan's cross.
Bain in the neck!published at 16:30 Greenwich Mean Time 19 January 2019
Kilmarnock 1-0 Forfar
Kenny Crawford
BBC Sport Scotland at Rugby Park
Forfar are really chasing an equaliser. They’ve been impressive with their creativity and passing all afternoon and Jamie Bain down the right-hand side is causing Killie all sorts of problems.
GOAL Aberdeen 1-1 Stenhousemuirpublished at 16:29 Greenwich Mean Time 19 January 2019
Mark McGuigan
Suddenly there are danger sides for Aberdeen as Mark McGuigan heads in from a Morgyn Neil cross.
Could there be a shock on the cards at Pittodrie?