The UEFA Champions League is the most prestigious club competition in European football. It brings together the continent’s strongest teams, produces some of the sport’s biggest nights, and since 2024 has used a new format that has changed how the early rounds work.
If you have wondered what happened to the old group stage, how a team finishes “ninth” in a league of 36, or how clubs earn a place in the first place, this guide covers it. It explains the format, the rules, the qualification routes and the trophy’s history, using the latest information available in 2026.
What Is the Champions League?
The Champions League is organised by UEFA, European football’s governing body. It began in 1955 as the European Cup, open only to national league champions. It was rebranded as the Champions League in 1992 and later opened to teams that did not win their domestic title, which is why you now see several clubs from the same country in the tournament.
The competition runs from the summer qualifying rounds through to a single-match final in late May or early June. The winner earns the right to play the Europa League winner in the UEFA Super Cup.
Real Madrid hold the record for most titles. Paris Saint-Germain are the reigning champions, having won in 2025 and again in 2026. In the 2026 final in Budapest, PSG beat Arsenal 4-3 on penalties after a 1-1 draw following extra time, becoming the first side to retain the trophy since Real Madrid’s run in the 2010s.
The New Format: League Phase Instead of Groups
From the 2024-25 season, the traditional eight groups of four were replaced by a single league phase with 36 teams. This was the biggest structural change in the competition’s modern history.
How the League Phase Works
Each club plays eight matches against eight different opponents, four at home and four away. Nobody plays everyone, so the table is not a conventional round-robin. Altogether the league phase contains 144 matches.
The draw works like this:
- The 36 teams are divided into four pots of nine, based on UEFA club coefficients (a ranking that rewards recent European results).
- Each team is drawn to play two opponents from each pot, one at home and one away.
- A club cannot face a team from its own country, and it can face no more than two clubs from any one association.
The draw is computer-assisted to ensure these conditions are met. Matches take place across eight matchdays between September and January, with games usually on Tuesdays, Wednesdays and Thursdays.
Scoring and Standings
Points are awarded as in most leagues: three for a win, one for a draw and none for a defeat. All 36 teams are placed in a single table. Ties on points are separated by criteria such as goal difference, goals scored, away goals scored, number of wins and other measures laid out in UEFA’s regulations.
What the League Table Position Means
Your final position determines your path:
| League Phase Position | Outcome |
|---|---|
| 1st to 8th | Qualify directly for the round of 16 |
| 9th to 24th | Enter the knockout phase play-offs |
| 25th to 36th | Eliminated (no drop into another competition) |
The top eight skip a round, which gives them extra rest and creates a clear incentive to chase high positions on the final matchday. Teams in 9th to 16th are seeded in the play-offs, meaning they face a lower-placed opponent (17th to 24th) and play the second leg at home.
Notably, there is no safety net for the bottom 12. Unlike the old format, where third-placed teams dropped into the Europa League, finishing 25th or lower ends a club’s European season in this competition.
The Knockout Phase
The Play-Offs
The play-off round is a two-legged tie. Teams finishing 9th to 16th are seeded, and teams finishing 17th to 24th are unseeded. The winners join the top eight in the round of 16.
Round of 16, Quarter-Finals and Semi-Finals
From the round of 16 onwards, each tie is played over two legs, one at each team’s stadium. The team that scores more goals across both matches progresses.
The bracket is predetermined based on league-phase positions, so fans can see potential paths to the final well in advance. Teams from the top eight are placed on one side so they cannot meet each other early.
The Final
The final is a single match played at a neutral venue. The 2026 final was staged at the Puskás Aréna in Budapest, and the 2027 final is scheduled for the Estadio Metropolitano in Madrid.
Extra Time and Penalties
If a knockout tie is level on aggregate after two legs, it goes to 30 minutes of extra time, then a penalty shootout if still tied. The same applies to the final if the score is level after 90 minutes.
The away goals rule, which once decided ties, was abolished in 2021. Goals scored away from home now count the same as those scored at home.
How Teams Qualify
Qualification is the part that confuses many fans. A club does not simply “enter” the Champions League. It earns a place through its performance in its own country’s league, with some additional routes.
Domestic League Positions
Each national association is given a number of places based on its position in UEFA’s association coefficient ranking, which measures how well its clubs have performed in Europe over the previous five seasons.
In general, stronger leagues get more places. The top four associations typically receive four direct places for their highest-finishing clubs. In England, that traditionally means the top four in the Premier League.
European Performance Spots
UEFA introduced European Performance Spots with the new format. They award one extra Champions League place to each of the two associations whose clubs performed best collectively in European competitions during the previous season. This means that a strong European season can give a league a fifth entry in the following year.
Those extra places explain why you will sometimes see five English or Spanish clubs in the competition. The allocation varies from year to year, so check UEFA’s official list for the current season.
Title Holders and Europa League Winners
The reigning Champions League winner is guaranteed a place, as is the Europa League winner. If either has already qualified through their league, the spare place passes down to another association.
The Qualifying Rounds
Not every team enters at the league phase. Champions of lower-ranked associations enter earlier, in qualifying rounds with two paths:
- Champions Path: for domestic champions from smaller associations.
- League Path: for clubs that finished below the top positions but still qualified through their domestic league.
These rounds happen in July and August and give clubs from smaller leagues a route to the main competition. Losers drop into the Europa League or Conference League, depending on the round.
Rules Specific to the Champions League
Squad Registration
Clubs must register a squad list for the competition. UEFA limits squad size and requires a minimum number of “locally trained” players, designed to encourage youth development. Clubs also have rules about how many foreign-trained players they can field relative to those trained domestically.
Substitutions
Teams can use up to five substitutes in 90 minutes, with a sixth allowed in extra time in knockout games.
VAR and Technology
The competition uses VAR and semi-automated offside technology. Our guide to how VAR works explains the process in more detail.
Financial Regulations
UEFA’s financial sustainability rules apply to clubs in its competitions. These include a limit on how much of a club’s revenue can go toward squad costs, such as wages and transfer amortisation. Clubs that break the rules can face fines or exclusion from the competition.
Money, Prestige and Why It Matters
Champions League participation brings substantial income through broadcasting, performance bonuses and matchday revenue. UEFA distributes the money based on factors including sporting performance, historical coefficient and market pool. Exact figures differ every season, so check UEFA’s official announcements for the latest numbers.
For clubs, the competition also affects player recruitment. Many top players prefer to compete in the Champions League, and a club that fails to qualify may struggle to attract stars.
Memorable Champions League Moments
The competition has a long record of remarkable nights:
- Liverpool’s comeback in Istanbul (2005): from 3-0 down at half-time to beat AC Milan on penalties.
- Manchester United’s last-minute treble win (1999): two goals in stoppage time against Bayern Munich.
- Real Madrid’s run of three straight titles (2016-2018): the only team to win three consecutive Champions League finals.
- PSG’s first title (2025): a 5-0 win over Inter Milan in the final, the largest margin in a European Cup final.
How the Champions League Compares With Other European Competitions
| Competition | Level | Teams in League Phase | Qualification |
|---|---|---|---|
| Champions League | Top tier | 36 | Top domestic finishers, title holders |
| Europa League | Second tier | 36 | Lower league positions, cup winners |
| Conference League | Third tier | 36 | Smaller associations, cup winners |
The Europa League and Conference League also use league-phase formats, though with a different number of matches per team.
Tips for Following the Competition
- Watch the final matchday. The league phase often delivers dramatic finales, with several teams chasing a top-eight finish.
- Learn the pots. Seeing which pot a team came from helps explain the strength of their schedule.
- Check the coefficient. It explains why some leagues get more places.
- Follow the bracket. The structure of the knockout rounds makes it easy to predict possible matchups.
Conclusion
The Champions League has changed shape, but its core purpose remains the same: to determine the best club side in Europe. The league phase gives every club more matches against varied opponents, the knockout rounds keep the drama of two-leg ties, and the single-match final gives the competition its climax.
Understanding the format, the qualification routes and the rules makes it much easier to appreciate what is at stake each time the anthem plays. With Paris Saint-Germain defending a back-to-back title and Madrid hosting the next final, the next edition of the competition is already shaping up to be as compelling as the last.
