Much will be said over the next 48 hours before Celtic take to the field against St Johnstone.
Celtic fans are now taking part in a scatter gun approach to assert bone to someone for their Europa League exit.
Whatever camp you’re in when it comes to who shoulders most of the blame you can’t really disagree with Neil Lennon’s assessment on the night.
“It was an opportunity lost.” The Celtic manager told CelticTV.
“Copenhagen didn’t have to work hard to get goals, that was so frustrating and not like us at all.
“I am hugely disappointed. We shot ourselves in the foot. We had total control of game in first half, I don’t remember Fraser Forster having anything to do of note.
“We hit the post and I was pretty pleased at half time and then we made mistakes and gave them oxygen and encouragement.
“We had to change the shape to get back into the game and deservedly got back in but we didn’t manage the game, we shot ourselves in foot for second goal and that was the big moment of the tie.
“Individual mistakes cost us and that’s the nuts and bolts of it. It was a great opportunity and we let it go. It was bitterly disappointing in the manner we lost.”
We are better than what we showed in both legs against Copenhagen but football can be harsh and if you give your opposition room to breath, they will take it.
Neil has introduced a high energy, almost frantic at times style of football which has seen us pull away in the league and manage some big results in the group.
Ultimately, we sit here frustrated wondering what could have been.
Celtic don’t have time to wallow and must now turn their attention to the Scottish Cup.