Celtic’s Stunning Collapse Against Lask Marks Worst European Night in Club History

Martin O’Neill’s Celtic entered the second leg against Austrian side Lask with a comfortable 4‑0 aggregate lead, courtesy of a low‑driven finish from Callum McGregor after just 21 minutes on Tuesday night. The early goal sparked optimism that the Scottish champions had finally shaken off the “Bigger Cup” demons that haunted them a year earlier.

Commentator Bill Leslie, who described the situation as a tie moving beyond Lask’s reach, noted the deflected shot fizzing past the home keeper. Yet his confidence proved premature. Within the remainder of the match, Celtic’s defence unraveled, allowing Lask to score five times without reply. The sudden reversal turned what looked like an assured passage to the next round into what many are calling the Grand Old Team’s greatest European embarrassment to date.

The defeat carries added sting because it surpasses the humiliation Celtic suffered at the hands of Kairat Almaty in August of the previous season, a loss that still lingers in supporters’ memories. While the match narrative was dominated by the on‑field drama, the post‑match commentary added colour. Phil Taverner, in a side note, joked about trying to sell a broken television for more than he paid, reflecting the bewilderment many felt at the club’s financial and sporting missteps.

Letters from readers also featured in the Football Daily roundup. Noble Francis’s correspondence praised Chelsea’s “game‑winning arithmetic tactics,” likening the approach to Kevin Keegan’s Newcastle era, while Ken Muir confessed he would enjoy seeing Chelsea dominate the Premier League for the sake of his fantasy team. Though unrelated to the Celtic‑Lask tie, these snippets illustrate the broader tapestry of fan opinion circulating in the daily newsletter.

The Guardian’s Barry Glendenning reported the match on 26 August 2026, emphasizing how quickly Celtic’s apparent invincibility evaporated. The article, part of the Football Daily email series, urges readers to sign up for the full version, but the core story stands on its own: a team that seemed set to cruise through a European round‑of‑16 tie instead endured a five‑goal collapse that will be remembered as a low point in Celtic’s modern history.

As the dust settles, Celtic will need to regroup quickly. The loss not only dents their continental ambitions but also raises questions about squad depth, tactical rigidity, and the psychological impact of past defeats. Supporters and pundits alike will be watching closely to see how Martin O’Neill and his staff respond to what has been described as a calamitous capitulation.