| Player | Reason | From | Until | Days | Games missed |
|---|---|---|---|---|---|
 Nicolò Zaniolo | Muscle Fatigue | 18 Jul 2020 | 21 Jul 2020 | 3 | 1 |
Unknown player | Calf Problems | 14 Jul 2020 | 28 Jul 2020 | 14 | 4 |
Unknown player | Bruise On Ankle | 14 Jul 2020 | 25 Jul 2020 | 11 | 3 |
Unknown player | Calf Muscle Tear | 7 Jul 2020 | 27 Jul 2020 | 20 | 5 |
Unknown player | Adductor Injury | 5 Jul 2020 | 19 Jul 2020 | 14 | 4 |
 Juan Jesus | Hip Problems | 1 Jul 2020 | 28 Jul 2020 | 27 | 8 |
Unknown player | Wrist Fracture | 13 May 2020 | 4 Jul 2020 | 52 | 3 |
Unknown player | Abdominal Problems | 26 Feb 2020 | 2 Mar 2020 | 5 | 1 |
 Lorenzo Pellegrini | Hamstring Muscle Injury | 23 Feb 2020 | 15 Mar 2020 | 21 | 3 |
Unknown player | Bruise | 18 Feb 2020 | 21 Feb 2020 | 3 | 0 |
Unknown player | Meniscus Injury | 12 Feb 2020 | 29 Feb 2020 | 17 | 4 |
Unknown player | Bone Edema | 11 Feb 2020 | 11 May 2020 | 90 | 5 |
Unknown player | Meniscal Injury | 22 Jan 2020 | 5 Mar 2020 | 43 | 9 |
Unknown player | Shoulder Injury | 18 Jan 2020 | 24 Jan 2020 | 6 | 2 |
Unknown player | Bruise | 17 Jan 2020 | 25 Jan 2020 | 8 | 2 |
| Nicolò Zaniolo | Cruciate Ligament Tear | 13 Jan 2020 | 3 Jul 2020 | 172 | 13 |
 Henrikh Mkhitaryan | Hamstring Strain | 7 Jan 2020 | 4 Feb 2020 | 28 | 6 |
Unknown player | Adductor Pain | 4 Jan 2020 | 20 Jan 2020 | 16 | 3 |
Unknown player | Shoulder Injury | 13 Dec 2019 | 1 Jan 2020 | 19 | 2 |
Unknown player | Bruised Knee | 10 Dec 2019 | 19 Dec 2019 | 9 | 2 |
Unknown player | Hamstring Muscle Injury | 7 Dec 2019 | 14 Jan 2020 | 38 | 5 |
Unknown player | Adductor Pain | 5 Dec 2019 | 9 Dec 2019 | 4 | 1 |
Unknown player | Muscular Problems | 5 Dec 2019 | 9 Dec 2019 | 4 | 1 |
 Justin Kluivert | Hamstring Injury | 2 Dec 2019 | 14 Jan 2020 | 43 | 6 |
 Riccardo Calafiori | Inner Ligament Injury | 25 Nov 2019 | 6 Jan 2020 | 42 | — |
Unknown player | Bone Edema | 23 Nov 2019 | 25 Jan 2020 | 63 | 12 |
Unknown player | Calf Problems | 23 Nov 2019 | 3 Dec 2019 | 10 | 3 |
| Henrikh Mkhitaryan | Fitness | 14 Nov 2019 | 26 Nov 2019 | 12 | 1 |
 Leonardo Spinazzola | Muscle Fatigue | 11 Nov 2019 | 26 Nov 2019 | 15 | 1 |
| Leonardo Spinazzola | Muscle Fatigue | 6 Nov 2019 | 9 Nov 2019 | 3 | 1 |
| Juan Jesus | Thigh Problems | 29 Oct 2019 | 1 Nov 2019 | 3 | 1 |
Unknown player | Flu | 23 Oct 2019 | 26 Oct 2019 | 3 | 1 |
 Bryan Cristante | Adductor Injury | 21 Oct 2019 | 8 Jan 2020 | 79 | 14 |
Unknown player | Broken Fibula | 21 Oct 2019 | 26 Nov 2019 | 36 | 7 |
Unknown player | Mensical Laceration | 6 Oct 2019 | 4 Nov 2019 | 29 | 6 |
 Davide Zappacosta | Cruciate Ligament Tear | 4 Oct 2019 | 31 Mar 2020 | 179 | 28 |
Unknown player | Flu | 3 Oct 2019 | 14 Oct 2019 | 11 | 2 |
| Henrikh Mkhitaryan | Adductor Injury | 30 Sept 2019 | 14 Nov 2019 | 45 | 9 |
| Lorenzo Pellegrini | Metatarsal Fracture | 29 Sept 2019 | 4 Nov 2019 | 36 | 8 |
Unknown player | Dental Surgery | 17 Sept 2019 | 14 Oct 2019 | 27 | 6 |
Unknown player | Muscle Fatigue | 13 Sept 2019 | 23 Sept 2019 | 10 | 2 |
Unknown player | Hamstring Muscle Injury | 4 Sept 2019 | 28 Oct 2019 | 54 | 9 |
| Davide Zappacosta | Calf Muscle Tear | 1 Sept 2019 | 1 Oct 2019 | 30 | 6 |
Unknown player | Hamstring Injury | 24 Aug 2019 | 11 Oct 2019 | 48 | 9 |
| Leonardo Spinazzola | Muscular Problems | 21 Aug 2019 | 11 Sept 2019 | 21 | 2 |
Unknown player | Ankle Sprain | 17 May 2019 | 23 May 2019 | 6 | 1 |
Unknown player | Hamstring Muscle Injury | 2 May 2019 | 10 May 2019 | 8 | 1 |
Unknown player | Injury | 20 Apr 2019 | 27 Apr 2019 | 7 | 1 |
Unknown player | Knee Bruise | 12 Apr 2019 | 16 Apr 2019 | 4 | 1 |
Unknown player | Flu | 5 Apr 2019 | 7 Apr 2019 | 2 | 0 |
Unknown player | Hamstring Muscle Injury | 4 Apr 2019 | 2 May 2019 | 28 | 4 |
Unknown player | Hamstring Muscle Injury | 3 Apr 2019 | 13 May 2019 | 40 | 6 |
Unknown player | Muscular Problems | 3 Apr 2019 | 12 Apr 2019 | 9 | 2 |
 Stephan El Shaarawy | Calf Muscle Tear | 24 Mar 2019 | 4 Apr 2019 | 11 | 1 |
Unknown player | Calf Muscle Tear | 21 Mar 2019 | 11 Apr 2019 | 21 | 3 |
Unknown player | Injury | 8 Mar 2019 | 27 Mar 2019 | 19 | 2 |
Unknown player | Calf Muscle Tear | 6 Mar 2019 | 30 Mar 2019 | 24 | 3 |
| Lorenzo Pellegrini | Hamstring Muscle Injury | 6 Mar 2019 | 1 Apr 2019 | 26 | 3 |
Unknown player | Calf Injury | 5 Mar 2019 | 11 Apr 2019 | 37 | 6 |
Unknown player | Muscular Problems | 5 Mar 2019 | 12 Mar 2019 | 7 | 1 |
Unknown player | Abdominal Problems | 2 Mar 2019 | 4 Mar 2019 | 2 | 1 |
Unknown player | Muscular Problems | 21 Feb 2019 | 27 Mar 2019 | 34 | 5 |
Unknown player | Muscle Injury | 11 Feb 2019 | 28 Feb 2019 | 17 | 3 |
Unknown player | Doubtful | 8 Feb 2019 | 15 Feb 2024 | 1833 | — |
Unknown player | Calf Problems | 7 Feb 2019 | 12 Feb 2019 | 5 | 1 |
 Patrik Schick | Hamstring Muscle Injury | 7 Feb 2019 | 28 Feb 2019 | 21 | 4 |
Unknown player | Pubalgia | 6 Feb 2019 | 10 Feb 2019 | 4 | 1 |
Unknown player | Torn Muscle Fiber | 19 Jan 2019 | 20 Feb 2019 | 32 | 7 |
| Juan Jesus | Meniscus Injury | 14 Jan 2019 | 7 Feb 2019 | 24 | 5 |
Unknown player | Calf Injury | 14 Jan 2019 | 14 Feb 2019 | 31 | 7 |
Unknown player | Calf Injury | 12 Jan 2019 | 1 Feb 2019 | 20 | 4 |
| Stephan El Shaarawy | Flu | 11 Jan 2019 | 15 Jan 2019 | 4 | 0 |
Unknown player | Flu | 10 Jan 2019 | 21 Jan 2019 | 11 | 2 |
Unknown player | Foot Injury | 9 Jan 2019 | 18 Jan 2019 | 9 | 1 |
Unknown player | Hamstring Muscle Injury | 29 Dec 2018 | 15 Jan 2019 | 17 | 2 |
Unknown player | Muscle Injury | 26 Dec 2018 | 11 Jan 2019 | 16 | 2 |
Unknown player | Inflammation | 3 Dec 2018 | 10 Dec 2018 | 7 | 1 |
Unknown player | Calf Muscle Tear | 28 Nov 2018 | 11 Jan 2019 | 44 | 7 |
| Stephan El Shaarawy | Hamstring Muscle Injury | 27 Nov 2018 | 24 Dec 2018 | 27 | 6 |
 Edin Džeko | Muscle Injury | 27 Nov 2018 | 21 Dec 2018 | 24 | 5 |
| Lorenzo Pellegrini | Hamstring Muscle Injury | 24 Nov 2018 | 27 Dec 2018 | 33 | 8 |
Unknown player | Muscle Injury | 24 Nov 2018 | 26 Nov 2018 | 2 | 1 |
Unknown player | Ankle Sprain | 15 Nov 2018 | 26 Nov 2018 | 11 | 1 |
Unknown player | Calf Injury | 10 Nov 2018 | 29 Nov 2018 | 19 | 3 |
 Luca Pellegrini | Ankle Sprain | 1 Nov 2018 | 22 Nov 2018 | 21 | 3 |
Unknown player | Calf Injury | 22 Oct 2018 | 2 Nov 2018 | 11 | 2 |
| Justin Kluivert | Muscle Injury | 20 Oct 2018 | 2 Nov 2018 | 13 | 3 |
Unknown player | Muscle Injury | 18 Oct 2018 | 19 Nov 2018 | 32 | 6 |
| Patrik Schick | Inflammation | 18 Oct 2018 | 22 Oct 2018 | 4 | 1 |
Unknown player | Calf Injury | 15 Oct 2018 | 29 Nov 2018 | 45 | 8 |
Unknown player | Broken Foot | 4 Oct 2018 | 22 Oct 2018 | 18 | 2 |
Unknown player | Calf Injury | 29 Sept 2018 | 18 Oct 2018 | 19 | 3 |
Unknown player | Hamstring Muscle Injury | 25 Sept 2018 | 4 Oct 2018 | 9 | 3 |
Unknown player | Injury | 24 Sept 2018 | 30 Nov 2018 | 67 | — |
Unknown player | Calf Injury | 10 Sept 2018 | 20 Sept 2018 | 10 | 1 |
Unknown player | Cervical Spine Injury | 29 Aug 2018 | 13 Sept 2018 | 15 | 2 |
Unknown player | Knee Injury | 27 Aug 2018 | 13 Sept 2018 | 17 | 3 |
Unknown player | Ankle Injury | 17 Aug 2018 | 11 Sept 2018 | 25 | 4 |
Unknown player | Fitness | 16 Aug 2018 | 22 Aug 2018 | 6 | 1 |
 Alisson | Muscular Problems | 18 May 2018 | 22 May 2018 | 4 | 1 |
