Thursday night felt like a throwback for me.

Standing in the crowd as the stadium started to react to Rosenborg’s goal over in Germany against Leipzig felt a whole lot like being at Love Street in 1986. I have to be honest and say it was the first thing I thought about as the Celtic fans started to celebrate.

Maybe Tore Reginiussen can join Albert Kidd in having a celebratory Celtic Supporters’ Club named after him!

As the roar went up at Celtic Park on Thursday it was interesting because when you are in amongst it news travel fast. When you are down where Brendan Rodgers is on the touchline, you are in the dark. You have an obvious guess but there is always that fear at the back of your mind that it’s a mistake.

I can guarantee the first thing he would have asked would have been ‘are you sure?’ to whoever broke the good news to him.

But the bottom line is that despite not playing well on the night, Celtic are through.

And they are through not because of what they done on Thursday night, obviously, but because of how they performed over the group as a whole.

Nine points from an exceptionally strong group is a more than respectable tally and that is why they have been able to progress.

The next step will, of course, get harder again but the signs all point to the fact that there will be a few new additions in the January transfer window.

And even before we learned about the severity of Leigh Griffiths’ situation, I think there could have been a case made for another two strikers coming into the club. Ideally, you’d look for at least one experienced forward who can make take some of the pressure off of Odsonne Edouard.

The Frenchman had a tough shift against Salzburg which of course can happen to anyone in a game. But whereas you might look to the bench and change things around as the game went on, there just wasn’t that option on Thursday night.

So at the very least you would want to see another striker come in while Dedryck Boyata’s situation will depend on what maybe needs done defensively. The right-back position also remains a priority and that is something that I suspect the club will look to address when the window re-opens in January.

The situation with regards the forwards is perhaps compounded by what happened to Ryan Christie too. We don’t quite know the severity of the injury he suffered when he made what was actually a pretty brave block but it didn’t look good initially.

It would be a real pity for the boy himself if he was to find himself out of the team for a while now after doing so well. He has been outstanding and it would be a hard one for him to take if his season was properly compromised by a serious injury.

From the team’s point of view, it would be the loss of another creative and forward player so the hope is that Christie is not looking at ant serious time on the sidelines.

But in terms of the Europa League and Monday’s draw, it remains to be seen just who comes out the hat next. Certainly, though, Salzburg will have underlined the quality that can be expected at any stage of European competition.

They are an excellent side. They hustled and harried Celtic and made them make mistakes such was the quality of their play and they fitness levels. You can see why they got to the semi-finals of the Europa League last term.

But the thing that Brenan will probably appreciate too is that even when you are playing at home, when you are up against a team of that quality sometimes you have to adapt and be prepared to compromise on your own principles.

It is just one of those things that you don’t really have the option of not doing if you want to come out with the results you want and need.

But for the minute I think that the club are entitled to enjoy the prospect of European football beyond Christmas.