If there is one side who know how roll in Glasgow's east end it's Morton - their fans still remember 2013 vividly.
Dougie Imrie, scorer of that famous penalty that sent Neil Lennon's Hoops packing from the League Cup, is now in the dugout for the Greenock men and they'll take their eye off their Premiership promotion hopes for a crack at Ange Postecoglou's Premiership champions.
More than 2,000 Morton fans have snapped up tickets as they hope for an almighty upset that would send shockwaves through the competition but it won't come easy for them against the runaway league leaders who are flying after hammering Morton's rivals St Mirren 4-0 during the week. Celtic already got a measure revenge against the Ton with Moussa Dembele and Odsonne Edouard securing a comfortable quarter-final win in 2018 and they'll be looking for another handsome victory on Saturday.
Here is how you can watch the game.
When and where will the game take place?
The game takes place at the Celtic Park on Saturday, January 21. Kick-off is at 12.30pm.
What channel is it on?
This one has been picked up by the BBC and will be shown live on BBC Scotland. Sportscene coverage starts at 12.15 with 15 minutes of buildup.
Will there be a live stream?
The game will be shown live on BBC iPlayer and fans can stream the game to their devices.
Where else can I follow the action?
You can keep up with all the action right here on dailyrecord.co.uk! We'll be running a live blog with all the pre-match build-up and team news, and every kick of the ball once the clash gets underway. After the game, we'll have all the reaction from managers and players, as well as player ratings, talking points and a whole lot more.
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