Celtic endured a dramatic and humiliating reversal in the Champions League play‑off round when Austrian side LASK erased a 3‑0 first‑leg deficit and ultimately triumphed 5‑4 after extra time, consigning the Scottish champions to the Europa League. The night will be remembered as one of the darkest chapters in Celtic's recent European history. Going into the second leg in Austria, Celtic seemed comfortably in control. Callum McGregor, who had already netted in the first encounter, extended the lead early, turning the aggregate score to 4‑0 in favour of the Hoops.

The atmosphere at the LASK stadium was tense, but the Scottish side appeared to be cruising towards a place in the Champions League group stage. Martin O'Neill, Celtic’s manager, later admitted that the experience was "the worst" he had felt on the touchline since the 2003 UEFA Cup final, describing the collapse as "majorly disappointing". The disappointment was palpable as the team’s composure began to fray after a flurry of goals from LASK.

Moses Usor opened the comeback for the Austrians, followed quickly by a long‑range strike from Robert Ljubicic. The situation grew even more precarious when Samuel Adeniran, who had already impressed with a stunning goal, added another from distance. Despite the onslaught, Celtic held on for a while, seemingly on the brink of sealing a spot in Thursday’s Champions League group‑stage draw.

However, the drama reached its climax in the 90th minute when LASK substitute Florian Flecker headed in a last‑gasp equaliser, sending the match into extra time. The momentum had completely shifted; the Austrian side now possessed the confidence and energy that Celtic seemed to have lost.

In the first period of extra time, Adeniran struck again in the 109th minute, giving LASK a fleeting lead on aggregate for the first time. He then had a chance to make it worse for Celtic when he stepped up for a penalty after Reo Hatate fouled Krystof Danek inside the box. Viljami Sinisalo, LASK’s keeper, made a crucial save, denying the spot‑kick and offering his side a lifeline.

The drama did not end there. Celtic pressed for an equaliser, but the extra‑time period concluded with the score still level, meaning LASK would advance on aggregate.

The final whistle confirmed Celtic’s exit from the Champions League for a second straight season, following a penalty shoot‑out defeat to Kairat Almaty the previous year. The aftermath was filled with frustration and self‑reflection. O'Neill, speaking to Amazon Prime, took full responsibility, saying, "We should've been out of sight by half‑time. We missed two great opportunities and then we gave them a lifeline right before half‑time and then another one just after it.

They came roaring back. That's my team, that's my responsibility." He added that the team had believed they were still in control at the break, only to see the opposition surge forward and dominate the latter stages of the game. McGregor, the captain, echoed the sentiment, apologising to supporters and acknowledging that the team had not earned the result. "We apologise to the supporters and to the club because there's no way we should lose that game.

Now we have to see what character we have," he said. Beyond the sporting disappointment, the financial implications are significant.

According to Sky Sports analyst Adam Binnie, qualifying for the Champions League group stage would have brought Celtic an estimated £40 million, split across UEFA’s distribution pillars, gate receipts and performance bonuses. Missing out means the club loses a substantial revenue stream, especially after already spending around £30 million on transfers and wages this season. Fans on social media expressed a mix of anger and disbelief.

Some, like user LJJ, labelled the performance "absolutely embarrassing" and suggested the Europa League might be a more realistic target for Celtic. Others, such as Jonny and Reinaldo7, criticized the tactical approach and the choice of substitutes, while Stevo highlighted the rarity of blowing a four‑goal lead at this level. Celtic now turn their attention to the Europa League, where they will be drawn into a group containing Bournemouth, Sunderland and Crystal Palace.

The club hopes to salvage the season by achieving a deep run in the secondary competition, but the psychological scar left by the LASK collapse will be a challenge to overcome. In summary, what began as a comfortable 4‑0 aggregate advantage turned into a night of panic, missed chances and a painful extra‑time defeat. The loss not only damages Celtic’s reputation on the European stage but also carries a heavy financial burden. The team must regroup, address the tactical deficiencies exposed by LASK, and find a way to restore confidence among its supporters as they embark on their Europa League campaign.