| 1a Classificatória | 2a Classificatória | 3a Classificatória | Playoff | Fase de Grupos | Fase de 32 |
| Oitavas-de-final | Quartas-de-final | Semifinal | Final |
Round:
Played
1st Round
09/15/2011 - Thursday
12:05
Atlético de Madrid
2
x
0
Celtic
12:05
Udinese
2
x
1
Rennes
2nd Round
09/29/2011 - Thursday
10:00
Celtic
1
x
1
Udinese
10:00
Rennes
1
x
1
Atlético de Madrid
3rd Round
10/20/2011 - Thursday
10:00
Rennes
1
x
1
Celtic
10:00
Udinese
2
x
0
Atlético de Madrid
4th Round
11/03/2011 - Thursday
13:05
Atlético de Madrid
4
x
0
Udinese
13:05
Celtic
3
x
1
Rennes
5th Round
11/30/2011 - Wednesday
10:00
Celtic
0
x
1
Atlético de Madrid
10:00
Rennes
0
x
0
Udinese
6th Round
12/15/2011 - Thursday
12:05
Atlético de Madrid
3
x
1
Rennes
12:05
Udinese
1
x
1
Celtic