Celtic's Old Firm capitulation has cast a dark cloud over Parkhead as they prepare to get their Europa League campaign underway with a visit from Ferencvaros.
Fans were already upset after the Hoops blew a 4-0 aggregate lead against LASK in the Champions League play-offs to drop into Europe's second-tier competition.
That anger has now intensified after Martin O'Neill's men turned in a dreadful display at Ibrox on Sunday, losing 3-0 in the League Cup quarter-final.
With another derby looming in the SPFL Premiership this weekend, Celtic need a win against the Hungarians to change the mood music.
But Ferencvaros will fancy their chances of piling on the pain as they're in good form heading into the league phase.
Balazs Borbely's side are on an 11-game unbeaten run and they knocked out Vojvodina, FC Twente, Gornik Zabrze and Trabzonspor in the Europa League qualifiers.
That suggests they could get a bit of joy against a Celtic side who look vulnerable against decent opposition.
How the bookies view it: Ferencvaros overpriced at 4/1
Celtic Park is no longer a fortress on the European stage yet Bet365 still make the Hoops 13/20 hot favourites for this one. Ferencvaros look too big at 4/1 and the draw is only a little smaller at 3/1.
Head to head: Hoops eye more revenge
Ferencvaros knocked Celtic out of the Champions League qualifiers six years ago, winning 2-1 in Glasgow in a one-leg match during the Covid restrictions.
The Hoops gained a measure of revenge a year later in the Europa League groups, winning home and away against the Hungarians.
Players to watch: Duran seeking KO blow
Camilo Duran was the star of the show in Celtic's last home European game, scoring two stunners against LASK. He should offer the biggest threat to Ferencvaros and is 11/10 at Bet365 for a goal.
Lenny Joseph impressed for Ferencvaros in qualifying but the striker has sat out their last three games. So midfielder Marius Corbu might be the best shout for a goal here at decent odds of 9/2. He's also evens just to have an effort on target.
Probable line-ups
O'Neill has a big call to make in goal, with Sam Johnstone looking shaky at Ibrox on just his second start. Viljami Sinisalo could come back in to provide more stability. Midfielder Alex Oxlade-Chamberlain serves the final game of a three-match European ban.
Ferencvaros will be praying star striker Joseph is fit to start as he hasn't played since August 30.
Celtic: Sinisalo, Donovan, Carter-Vickers, Trusty, Scales, McGregor, Sorensen, Nygren, Hassan, Duran, Hogh.
Ferencvaros: Dibusz, Gomez, Cadu, Raemaekers, O Nagy, A Nagy, Yusuf, Zachariassen, Corbu, O'Dowda, Joseph.
Anything else catch the eye?
I'm surprised to see Celtic as such heavy favourites for this one, given the paucity of their displays away to Rangers and LASK.
Yes, the Hoops beat the Austrians 3-0 at home in the first leg but that scoreline wasn't a true reflection on the game, with LASK having more shots and efforts on target.
So I fancy Ferencvaros to get a bit of joy in Glasgow and they look well worth a punt at 6/5 in the double chance.
Celtic should also carry a threat going forward and they were clinical in that Parkhead win over LASK. I can see this game being quite open and over 1.5 first-half goals looks good at 6/5 with Bet365.
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