| 
|  | Milan | 6 | 4 | 1 | 1 | 12 | 7 | +5 | 13 |  |  |  | Lille | 6 | 3 | 2 | 1 | 14 | 8 | +6 | 11 |  |  |  | Sparta Prag | 6 | 2 | 0 | 4 | 10 | 12 | -2 | 6 |  |  |  | Celtic | 6 | 1 | 1 | 4 | 10 | 19 | -9 | 4 |  |  |  | Milan og Lille til 1/16-finaler |  | 
 | HOLD | Celtic | Milan | Lille | Sparta Prag | 
 
| CELTIC |  | 22.10.2020 1 - 3
 | 10.12.2020 3 - 2
 | 05.11.2020 1 - 4
 |  | MILAN | 03.10.2020 4 - 2
 |  | 05.11.2020 0 - 3
 | 29.10.2020 3 - 0
 |  | LILLE | 29.10.2020 2 - 2
 | 26.11.2020 1 - 1
 |  | 03.10.2020 2 - 1
 |  | SPARTA PRAG | 26.11.2020 4 - 1
 | 10.12.2020 0 - 1
 | 22.10.2020 1 - 4
 |  |  | HOLD | Celtic | Milan | Lille | Sparta Prag | 
 
|  |  |  |  | 10.12.2020 | Celtic Lille
 | 3 (2) 2 (1)
 |  |  |  | 10.12.2020 | Sparta Prag Milan
 | 0 (0) 1 (1)
 |  |  |  |  |  |  | 22. | 1-0 | Christopher Jullien |  |  |  | 23. | 0-1 | Jens Petter Hauge |  |  | 24. | 1-1 | Jonathan Ikoné |  |  |  | 77. |  | Dominik Plechaty |  |  | 28. | 2-1 | Callum McGregor, straffe |  |  |  |  | 71. | 2-2 | Timothy Weah |  |  |  |  | 75. | 3-2 | David Turnbull |  |  |  |  |  |  
|  |  |  |  | 03.12.2020 | Milan Celtic
 | 4 (2) 2 (2)
 |  |  |  | 03.12.2020 | Lille Sparta Prag
 | 2 (0) 1 (0)
 |  |  |  |  |  |  | 7. | 0-1 | Tom Rogic |  |  |  | 65. |  | Ondrej Celustka, Sparta Prag |  |  | 14. | 0-2 | Odsonne Edouard |  |  |  | 71. | 0-1 | Ladislav Krejci |  |  | 24. | 1-2 | Hakan Calhanoglu |  |  |  | 80. | 1-1 | Burak Yilmaz |  |  | 26. | 2-2 | Samu Castillejo |  |  |  | 84. | 1-1 | Burak Yilmaz |  |  | 50. | 3-2 | Jens Petter Hauge |  |  |  |  | 82. | 4-2 | Brahim Diaz |  |  |  |  |  |  
|  |  |  |  | 26.11.2020 | Lille Milan
 | 1 (0) 1 (0)
 |  |  |  | 26.11.2020 | Sparta Prag Celtic
 | 4 (2) 1 (1)
 |  |  |  |  |  |  | 47. | 0-1 | Samu Castillejo |  |  |  | 15. | 0-1 | Odsonne Edouard |  |  | 65. | 1-1 | Jonathan Bamba |  |  |  | 27. | 1-1 | David Hancko |  |  | 58. | 0-3 | Yusuf Yazici |  |  |  | 38. | 2-1 | Lukas Julis |  |  |  |  |  |  |  |  | 80. | 3-1 | Lukas Julis |  |  |  |  |  |  |  |  | 90. | 4-1 | Srdjan Plavsic |  |  |  |  
|  |  |  |  | 05.11.2020 | Milan Lille
 | 0 (0) 3 (1)
 |  |  |  | 05.112020 | Celtic Sparta Prag
 | 1 (0) 4 (2)
 |  |  |  |  |  |  | 22. | 0-1 | Yusuf Yazici, straffe |  |  |  | 26. | 0-1 | Lukas Julis |  |  | 55. | 0-2 | Yusuf Yazici |  |  |  | 45. | 0-2 | Lukas Julis |  |  | 58. | 0-3 | Yusuf Yazici |  |  |  | 65. | 1-2 | Leigh Griffiths |  |  |  |  |  |  |  |  | 77. | 1-3 | Lukas Julis |  |  |  |  |  |  |  |  | 90. | 1-4 | Ladislav Krejci |  |  |  |  
|  |  |  |  | 29.10.2020 | Lille Celtic
 | 2 (0) 2 (2)
 |  |  |  | 29.10.2020 | Milan Sparta Prag
 | 3 (1) 0 (0)
 |  |  |  |  |  |  | 28. | 0-1 | Mohamed Elyounoussi |  |  |  | 24. | 1-0 | Brahim Diaz |  |  |  | 33. | 0-2 | Ryan Christie |  |  |  | 57. | 2-0 | Rafael Leao |  |  |  | 67. | 1-2 | Mehmet Zeki Celik |  |  |  | 67. | 3-0 | Diogo Dalot |  |  |  | 75. | 2-2 | Jonathan Ikoné |  |  |  |  |  |  
|  |  |  |  | 22.10.2020 | Sparta Prag Lille
 | 1 (0) 4 (1)
 |  |  |  | 22.10.2020 | Celtic Milan
 | 1 (0) 3 (2)
 |  |  |  |  |  |  | 23. |  | Ladislav Krejci, Sparta Prag |  |  |  | 14. | 0-1 | Rdade Krunic |  |  |  | 45. | 0-1 | Yusuf Yazici |  |  |  | 42. | 0-2 | Brahim Diaz |  |  |  | 47. | 1-1 | Borek Dockal |  |  |  | 76. | 1-2 | Mohamed Elyounoussi |  |  |  | 60. | 1-2 | Yusuf Yaziki |  |  |  | 90. | 1-3 | Jens Petter Hauge |  |  | 66. | 1-3 | Jonathan Ikoné |  |  |  |  | 75. | 1-4 | Yusuf Yaziki |  |  |  |  |  |  |  |