2017–18 UEFA Champions League

Format and participants

The competition followed the familiar modern format: preliminary and qualifying rounds for lower-ranked national associations, a group stage featuring 32 clubs drawn into eight groups of four, and a knockout phase made up of two-legged ties (round of 16, quarter-finals and semi-finals) culminating in a one-off final. Clubs earned places according to their domestic league positions and UEFA's access list, allowing a mix of champions from smaller associations and high-placed teams from Europe's top leagues.

Teams that failed to reach or progress from the Champions League group stage could continue in UEFA club competition via the Europa League. The tournament showcased leading European clubs and many of the era's most prominent players, managers and playing styles.

Key matches and the final

The knockout rounds included high-profile matchups and dramatic comebacks, reflecting the competition's reputation for close, tactical ties. The final was played at the NSC Olimpiyskiy Stadium in Kyiv. In that match, Real Madrid defeated Liverpool 3–1 to win the title. Real Madrid's victory secured their 13th European Cup/Champions League crown and a third consecutive win in the Champions League era, a feat that underlined the club's dominance across the mid-2010s.

The final attracted widespread attention for its high stakes and pivotal incidents affecting both teams. Liverpool, managed by Jürgen Klopp, had reached the final after a memorable semi-final run; Real Madrid, led by Zinedine Zidane, consolidated their standing among Europe's elite with the win.

Significance and legacy

• Real Madrid's triumph reinforced their historical status in European competition and marked a unique run of consecutive titles in the Champions League era.
• The season illustrated the competition's commercial and sporting importance, serving as a showcase for tactics, player development and club strategy across European leagues.
• As with other seasons, the 2017–18 edition influenced transfers, managerial decisions and the wider debate about club football's structure in Europe.

For further background on the tournament's rules and European club rankings, see general UEFA competition materials and overviews of professional football in Europe: club competition formats and the history of the UEFA Champions League.