What is Qualification for UEFA Champions League?

The UEFA Champions league is open to the league champions of all UEFA member associations (except Liechtenstein, which has no league competition), as well as to the clubs finishing from second to fourth position in the strongest leagues. Since January 2007 the two lowest-ranked league competitions (currently the Andorra and San Marino leagues) can also represent their domestic champions in the Champions League.

The number of places in the competition depends on the association's rank in the UEFA coefficients table:

* associations ranked 1 to 3 have four positions,
* associations ranked 4 to 6 have three positions,
* associations ranked 7 to 15 have two positions,
* associations ranked 16 or lower have one position.

An association's rank also determines the stage at which the clubs enter the competition. For example, the three highest-ranked associations have two places in the group stage (for champions and runners-up) and two in the third qualifying round (for third and fourth-placed teams), whereas the lowest-ranked associations have only one place in the first qualifying round for their champions. Nine highest-ranked associations have at least one automatic place in the group stage.

An additional place in the group stage is reserved for the title-holders, in case they don't qualify via their domestic league. However, an association is limited to sending at most four clubs for a season. This means that if the title-holders come from a league given four positions, but finish out of the top four, it will take the place of the fourth placed team. The fourth placed team will go to the UEFA Cup.

In addition to sporting criteria, any club must be licensed by its national association to participate in the Champions league. To obtain a license, club must meet certain stadium, infrastructure and finance requirements.

There was controversy when Liverpool won the competition in 2004/2005, but finished outside the top four in the Premiership. The Football Association ruled that Everton F.C. (who finished fourth) would get the final spot. However, UEFA came to an agreement that both Merseyside rivals would be allowed to enter the competition with Liverpool starting from the first qualifying round and Everton starting from the third qualifying round. Liverpool became the first team to negotiate all three rounds of qualification and reach the Champions League group phase, a feat matched by Artmedia Bratislava of Slovakia in the same season.

FC Barcelona, Manchester United and FC Porto are the teams that have appeared most often in the group stages: thirteen each. However, each has won the Champions League only once since the group stage was established.