The 2007–08 UEFA Champions League was the 1st season with the champions from Andorra, Montenegro and San Marino. This brought together 76 teams from 52 UEFA member associations involved in the the 2007–08 competition.
The 2007-08 competition had 3 qualification rounds to reach the group stage.
The 28 lower tier domestic champions played a home and away knockout round.
The 14 winners from 1st Qualifying join 14 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 . As current UEFA Champions League titleholder, AC Milan automatically qualify for this season's group stage. This required the Belgium champions to play in this round.
|New teams|| Teams in |
|1st Qualifying||28 teams >>>||28 teams|
|2nd Qualifying|| 14 teams >>> || 14 winners from 1st Qualifying |
14 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.