73 teams from 49 UEFA member associations participated in the 2006–07 UEFA Champions League. The 2006–07 competition was the 4th season with 16 team knockout stage. England, Italy and Spain have 4 teams. France, Germany and Portugal have 3 teams. Nine countries have 2 teams. The remaining 33 countries are only represented by their champions.
The 2006-07 competition had 3 qualification rounds to reach the group stage.
The 22 lower tier domestic champions played a home and away knockout round.
The 11 winners from 1st Qualifying join 17 additional teams, playing a home and away knockout round.
The 14 winners from 2nd Qualifying join the remaining 18 teams, playing a home and away knockout round .
|New teams|| Teams in |
|1st Qualifying||22 teams >>>||22 teams|
|2nd Qualifying|| 17 teams >>> || 11 winners from 1st Qualifying |
17 new teams
|3rd Qualifying|| 18 teams >>> || 14 winners from 2nd Qualifying |
18 new teams
|Group Stage|| 16 teams >>> || 16 winners from 3rd Qualifying |
16 new teams
The 16 winners from the 3rd Qualifying Round joined with the 16 automatic qualifying teams to form 8 groups of 4 teams, playing a home and away series.
The top 2 in each group advanced to the knockout stage.