It was dubbed Beautiful Monday when Dundee relegated their bitter rivals United.
And now the pair are gearing up to meet in what could be a Super Sunday for one of them.
The return of one of Scottish football's big derbies is welcome on the top flight fixture list.
For rival gaffers Tam Courts and James McPake it will be their first taste of this old rivalry, in the dugout at least.
United have started the campaign the stronger and have an impressive victory over champions Rangers under their belt already.
Dundee are still searching for their first win of the league campaign having drawn three of their first five fixtures.
Form goes out of the window on derby day though and for the first time since Craig Wighton sent the Tangerines plummeting to the Championship in 2016 this famous match resumes its rightful place in the first tier.
Here's everything you need to know.
Where and when will the game take place?
The game is at Tannadice Park, Dundee, on Sunday 19 September.
Kick-off is at 12 noon.
What channel is it on?
Premiership broadcaster Sky Sports have picked up this game.
Tuck into a hearty Sunday breakfast and enjoy an hour of build-up with coverage starting on Sky Sports Football at 11am.
Will there be a live stream?
Yes. Sky customers can stream the match to their devices using the Sky Go app.
Where else can I follow the action?
You can follow it right here on dailyrecord.co.uk of course! We'll be running a live blog throughout the day, bringing you all the key moments as well as post-match reaction and analysis.
A match report and much, much more will also be available on our website following the final whistle.