How a single night in Rome completed football's most historic treble

Cultures · Published 3 October 2026 Swipe more like this →

In short: In May 2009, Barcelona secured a legendary treble with a 2–0 victory over Manchester United. But the path to the Stadio Olimpico was paved by massive upsets, record-breaking winning margins, and a complex hierarchy of European footballing prestige.

The 2000–09 UEFA Champions League season was a masterclass in the tournament's intricate meritocracy. Qualification was determined by the 2007 UEFA league coefficients, which measured performance from the 2002–03 to 2006–07 seasons. This system created a strict hierarchy: the top three associations earned four spots each, while lower-ranked nations received as few as one. The tournament's complexity was further heightened when Manchester United, as defending champions, qualified via their domestic league, triggering a cascade of promotions for champions from Scotland, Bulgaria, Poland, and Hungary.

While the final featured giants, the early qualifying rounds provided the season's most dramatic narratives. Underdogs frequently defied the coefficients. In the first qualifying round, Inter Baku and BATE Borisov secured upsets, while the second round saw unranked Kaunas defeat the high-ranking Rangers. Perhaps most impressively, Anorthosis Famagusta of Cyprus and BATE Borisov of Belarus both survived the grueling qualifying stages to reach the group stage, marking historic debuts for their respective nations.

The knockout phase showcased extreme statistical outliers. Bayern Munich achieved the largest two-leg victory in the Champions League era, defeating Sporting CP with a 12–1 aggregate score. Meanwhile, Manchester United demonstrated remarkable resilience, extending an undefeated streak to 25 matches before finally falling to Barcelona in the final. This victory for Barcelona, fueled by goals from Samuel Eto'o and Lionel Messi, stands as a definitive moment in modern football history.

General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.

Intellect Plus is a visual educational discovery platform for exploring fascinating facts and ideas. Brain Food, Not Brain Rot. What is Intellect Plus?

Related

• Manchester United completed a historic European treble with a 2017 victory
• How a 5–0 rout rewrote the history of European football
• The final era of the champions-only European football hierarchy
• The tournament where one team dismantled the entire English Premier League
• How Liverpool staged the greatest comeback in the history of European club football
• How a symbolic roundabout became the epicenter of a nation's struggle for political reform
• The rare midterm election where the president's party gained control of the Senate
• J. Cole turned his childhood home into a symbol of his artistic journey
• How a Belgian studio project became a global dance music phenomenon
• The 2016 Berlin state election reshaped the city's political landscape and governing coalition.
• How a mid-air standoff and a diverted flight triggered Pakistan's 1999 military coup
• The 2016 Baton Rouge ambush: A lone gunman's descent into radicalized violence

More in Traditions & customs · More in Cultures · Latest · A–Z · All topics