Celtic secured their biggest win under Ange Postecoglou on Saturday as the Hoops demolished their weekend opponents.
It was as comfortable a win as they come for the Bhoys who swept aside St Johnstone 7-0 at Parkhead.
It was a mightily positive victory for Postecoglou's men but it's not all sunshine and rainbows after Celtic were dealt with a crushing injury setback.
What's the word?
Giorgos Giakoumakis found the net for the 13th time early in the clash on Saturday but shortly after he found himself back in the dressing room, limping off injured.
Sadly, there is no chance that he will now be fit to face Rangers in the Scottish Cup semi-finals next Sunday.
Speaking about the issue in his post-match press conference, the Hoops boss said: "I’m not too sure at the moment. He didn’t think it was too bad but he could feel something.
“It’s always a concern when players do that. He’s had an enormous load the last few weeks.
“It’s unfortunate for him but I’m hopeful he’ll still be available for us in the run-in."
Major blow
This is a devastating blow for Celtic, primarily due to the timing of the Greek striker's setback.
They may have defeated Rangers last week but there is no guarantee that they will do again without the summer signing next weekend.
After all, Kyogo Furuashi has only just returned from injury and Giakoumakis has been in stunning form this calendar year.
The 27-year-old has scored eight times throughout 2022, which rather incredibly includes two hat-tricks.
With Kyogo out and Daizen Maeda adjusting to life in Scotland, he needed to inject a spark into his Celtic career and that's precisely what he's done, playing a key part in the club's bid for success.
The Glaswegian giants have already won the League Cup and are now favourites to win the Premiership but without Giakoumakis in seven days time, it could derail and flatten their hopes of securing a historical treble in Postecoglou's first campaign at Parkhead.
What makes it even worse is that the Greece international has already been plagued with injury since arriving, missing several games in the first half of the season.
Celtic will be hoping for a swift recovery sooner rather than later.