Well it doesn't get much bigger than this.
Celtic vs Rangers. Two points in it. Winner takes the initiative in the title race.
Ange Postecoglou's team take on Gio van Bronckhorst 's charges and while nothing will be decided tonight in terms of where the Scottish Premiership trophy goes, a victory would be a huge boost for either team's chances.
It will be new Rangers boss Van Bronckhorst's first taste of the derby as a manager but he knows it well having scored against the Hoops while playing for the Ibrox side.
Meanwhile Postecoglou goes looking for his first derby win after his side lost out at Ibrox earlier in the season.
It's one of the tightest Old Firms to call in recent memory but how's it going to go?
Our writers have had their say...
Keith Jackson
They’re nearly always difficult to call but this one more so than usual. Celtic are missing a raft of key players but go into this one with momentum at their back. Rangers have stuttered into the second half of the season but are very close to full strength. A draw might suit both sides and keep the pot boiling at the top of the table.
Celtic 1 Rangers 1
Scott Burns
I don’t think it is a game either side can really afford to lose and so I wouldn’t be surprised if it was a draw. Both sides are missing some major firepower at the top end of the pitch but it will probably come down to who has the tightest defence.
Celtic 1 Rangers 1
David McCarthy
Celtic have been grinding out results rather than blowing teams away and their recent record against Rangers is poor. I can’t see that changing in this one. The Rangers defence has been rocky but from middle to front they have enough to cause the home defence big problems.
Celtic 1 Rangers 2
Michael Gannon
The bookies have Celtic favourites and they will have the home crowd to roar them on. But the Hoops are still severely depleted with Callum McGregor, Kyogo, Tom Rogic and David Turnbull all out.
Rangers haven’t been great of late but their counter attacking style could hurt Celts if the Parkhead men don’t get ahead first.
There should be goals but a draw might be the more likely outcome.
Celtic 1 Rangers 1
Gordon Parks
The attacking power of Celtic will give the Hoops the edge, it’ll be a rough and tumble affair as usual but Rangers don’t have as much guile as their hosts.
Celtic 2 Rangers 0
Fraser Wilson
Key men missing for both sides, Old Firm rookies set for their first taste of the fire, this is one of the most difficult derbies to call for a long time. The two midfields could cancel each other out and I reckon it all comes down to who makes the fewer mistakes at the back.
Rangers rotten defensive display on Saturday will have given them a jolt. So score draw and as you were.
Celtic 1 Rangers 1