Tuesday evening turned out to be a disappointing night for Celtic as they were knocked out of the Champions League by the Romanian Champions CFR Cluj, losing 4-3 at Celtic Park, meaning the tie was lost 5-4 on aggregate.

The Hoops will now drop into the Europa League playoff round to face either Swedish Champions AIK or Sheriff from Moldova.

It was a topsy-turvy night at Celtic Park were emotions switched from delight to despair on numerous occasions and there are plenty of things to talk about in terms of things we learned.

Here are the four biggest things that we took from the game.