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Aberdeen 0-3 St Mirren - O'Hara strike deflects past Roos before St Mirren captain misses VAR-reviewed penalty; Ayunga adds second & Kiltie third
Hearts 2-2 Ross County - Cochrane diverts into own net before incredible Dhanda free-kick; Vargas pulls one back & Shankland levels
Kilmarnock 2-2 Dundee - McKenzie & Wright score late to cancel out McCowan opener but Shaughnessy levels in stoppage-time
Motherwell 3-1 Livingston - Spittal & Bair net before Pittman pulls one back; magnificent Bair effort restores advantage
Arbroath draw with Raith in Championship after substitute goalkeeper Adams, playing up front, nets from 30 yards
Image source, SNSRangers fans had the pyro out to wave farewell to their heroes when they left Ibrox a bit earlier on.
Of course, there will be no away support at Celtic Park.
That's all I'll be saying on the ticket allocation issue as, I'm sure you'll agree, it's starting to get a bit... 😴💤
Image source, SNSCeltic v Rangers (12:30)
Relive some classic goals from past Old Firm fixtures
Scottish Premiership
It ain't all about the Old Firm though.
There's a massive game at the foot of the table as the bottom two go head-to-head at Fir Park.
Aberdeen and Ross County play for the first time in ages as the Dons host St Mirren while the Highlanders travel to Hearts.
And in Ayrshire, Dundee face a tough trip to in-form Kilmarnock.
Celtic v Rangers (12:30)
BBC Radio Scotland
We've got you covered on the radio.
Sportsound is already under way on Radio Scotland if you want to follow the build-up.
Radio 5 live will also provide live match commentary when the madness kicks off at 12:30 GMT.
Celtic v Rangers (12:30)
Rangers' key centre-half is fit though.
The big news for the visitors is Connor Goldson is available to start, while John Lundstram has also recovered from injury to return to the XI.
Lundstram for Kieran Dowell in midfield is the only change from the 2-0 win at Motherwell on Christmas Eve.
Image source, SNSCentre-back Connor Goldson is fit to start for Rangers
Celtic v Rangers (12:30)
It's just one change for Celtic following their Boxing Day win at Dundee - and it's a big one.
Brendan Rodgers revealed yesterday that Cameron Carter-Vickers wouldn't make this and he's replaced by Stephen Welsh.
Mikey Johnston starts from the bench again despite his two late goals at Dens Park.
He's joined by returning duo Liel Abada and Reo Hatate, who both return following long absences.
Image source, SNSStephen Welsh starts at the centre of Celtic's defence
Celtic v Rangers (12:30)
Celtic XI: Hart, A Johnston, Welsh, Scales, Taylor, McGregor, O'Riley, Bernardo, Maeda, Kyogo, Palma.
Substitutes: Bain, Abada, Yang, Turnbull, Nawrocki, Oh, Hatate, Ralston, M Johnston.
Rangers XI: Butland, Tavernier, Goldson, Balogun, Yilmaz, Lundstram, Sterling, Cantwell, McCausland, Sima, Dessers.
Substitutes: McCrorie, Souttar, Lammers, Cifuentes, Matondo, Dowell, S Wright, King, Devine.
No messin' about, let's get straight to the teams...
Celtic v Rangers (12:30)
Heard there's something big happening in Glasgow today - that's if it beats the snow...
The festive period could get a whole lot better for a big chunk of the city this afternoon.
Strap in, folks.
Image source, SNS
Image source, SNS