It looked like Celtic had one foot firmly in the Champions League proper. Leading 1-0 on the night and 4-0 on aggregate with just an hour to play, surely there was no way back for Austrian champions LASK Linz? Somehow, Celtic found one and handed it to them. In one of the most astonishing collapses in the club’s European history, Celtic completely capitulated as LASK tore them apart, eventually winning 5-1 on the night and 5-4 on aggregate after extra time...

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