| Player | Reason | From | Until | Days | Games missed |
|---|---|---|---|---|---|
 Franck Honorat | Fitness | 29 Oct 2026 | Current | — | 1 |
 Kevin Diks | Fitness | 29 Oct 2026 | Current | 4 | 1 |
 Hugo Bolin | Muscle Injury | 29 Oct 2026 | Current | — | 1 |
 Daiki Hashioka | Rest | 27 Oct 2026 | 29 Oct 2026 | 2 | 1 |
 Moritz Nicolas | Muscular Problems | 27 Oct 2026 | 2 Nov 2026 | 6 | 1 |
 Jens Castrop | Fitness | 20 Oct 2026 | 25 Oct 2026 | 5 | 1 |
 Isac Lidberg | Muscular Problems | 18 Oct 2026 | 28 Oct 2026 | 10 | 2 |
| Jan Leszczyński | Meniscus Injury | 16 Oct 2026 | Current | — | 4 |
 Tim Kleindienst | Torn Muscle Fiber | 16 Oct 2026 | Current | — | 4 |
| Fritz Fleck | Injury | 16 Oct 2026 | 2 Nov 2026 | 17 | 2 |
 Nicolas Kühn | Fitness | 14 Oct 2026 | 28 Oct 2026 | 14 | 3 |
| Tim Kleindienst | Muscular Problems | 6 Oct 2026 | 15 Oct 2026 | 9 | 1 |
| Tim Kleindienst | Muscular Problems | 5 Oct 2026 | — | — | 0 |
 Ko Itakura | Torn Muscle Fiber | 4 Oct 2026 | 27 Oct 2026 | 23 | 3 |
| Franck Honorat | Muscle Injury | 3 Oct 2026 | 28 Oct 2026 | 25 | 5 |
| Ko Itakura | Ankle Injury | 26 Sept 2026 | — | — | 0 |
| Daiki Hashioka | Fitness | 14 Sept 2026 | — | — | 0 |
 Yukhym Konoplya | Fitness | 14 Sept 2026 | 21 Sept 2026 | 7 | 1 |
| Nicolas Kühn | Torn Muscle Bundle | 8 Sept 2026 | 13 Oct 2026 | 35 | 5 |
| Enzo Leopold | Cruciate Ligament Injury | 2 Sept 2026 | Current | — | 10 |
| Daiki Hashioka | Neck Injury | 29 Aug 2026 | 14 Sept 2026 | 16 | 3 |
 Fabio Chiarodia | Fitness | 24 Aug 2026 | — | — | 3 |
 Zento Uno | Fitness | 24 Aug 2026 | 7 Sept 2026 | 14 | 2 |
| Tim Kleindienst | Muscular Problems | 21 Aug 2026 | 25 Aug 2026 | 4 | 1 |
| Jens Castrop | Shoulder Injury | 6 Aug 2026 | 19 Oct 2026 | 74 | 10 |
| Fabio Chiarodia | Torn Muscle Fiber | 30 Jul 2026 | 24 Aug 2026 | 25 | 2 |
| Yukhym Konoplya | Inner Knee Ligament Tear | 26 Jul 2026 | 14 Sept 2026 | 50 | 5 |
| Zento Uno | Muscular Problems | 1 Jul 2026 | 24 Aug 2026 | 54 | 4 |
Tomas Cvancara | Fitness | 1 Jul 2026 | — | — | 7 |
 Rocco Reitz | Infection | 12 May 2026 | 18 May 2026 | 6 | 1 |
 Nathan Ngoumou | Muscular Problems | 11 May 2026 | 1 Jul 2026 | 51 | 2 |
Unknown player | Muscular Problems | 6 May 2026 | 14 May 2026 | 8 | 1 |
| Tim Kleindienst | Fitness | 29 Apr 2026 | 12 May 2026 | 13 | 2 |
Unknown player | Injury | 27 Apr 2026 | 4 May 2026 | 7 | 1 |
| Kevin Diks | Muscular Problems | 20 Apr 2026 | 27 Apr 2026 | 7 | 1 |
 Marvin Friedrich | ILL | 11 Apr 2026 | 17 Apr 2026 | 6 | 1 |
 Robin Hack | Fitness | 6 Apr 2026 | 13 Apr 2026 | 7 | 1 |
Unknown player | Infection | 27 Mar 2026 | — | — | 15 |
 Tobias Sippel | Calf Injury | 27 Mar 2026 | 6 Apr 2026 | 10 | 1 |
Unknown player | Mononucleation | 19 Mar 2026 | 27 Apr 2026 | 39 | 6 |
 Jan Olschowsky | Knee Injury | 18 Mar 2026 | 30 Mar 2026 | 12 | 2 |
| Nathan Ngoumou | Fitness | 16 Mar 2026 | 20 Apr 2026 | 35 | 4 |
Unknown player | Hamstring Strain | 14 Mar 2026 | 6 Apr 2026 | 23 | 3 |
| Marvin Friedrich | Muscular Problems | 13 Mar 2026 | 19 Mar 2026 | 6 | 1 |
| Robin Hack | Torn Muscle Fiber In The Adductor Area | 3 Mar 2026 | 6 Apr 2026 | 34 | 5 |
Unknown player | Injury | 23 Feb 2026 | 6 Apr 2026 | 42 | 6 |
| Fritz Fleck | Tonsillitis | 23 Feb 2026 | 14 Apr 2026 | 50 | 7 |
Unknown player | Foot Injury | 12 Feb 2026 | 25 Feb 2026 | 13 | 2 |
Unknown player | Muscle Fiber Tear | 10 Feb 2026 | 9 Mar 2026 | 27 | 3 |
Unknown player | ILL | 30 Jan 2026 | 5 Feb 2026 | 6 | 1 |
| Jens Castrop | ILL | 24 Jan 2026 | 29 Jan 2026 | 5 | 1 |
 Giovanni Reyna | Muscular Problems | 24 Jan 2026 | 25 Feb 2026 | 32 | 5 |
| Kevin Diks | Head Injury | 18 Jan 2026 | 3 Feb 2026 | 16 | 2 |
Unknown player | ILL | 13 Jan 2026 | 16 Jan 2026 | 3 | 1 |
Unknown player | ILL | 9 Jan 2026 | 12 Jan 2026 | 3 | 0 |
| Fabio Chiarodia | Fitness | 1 Jan 2026 | 19 Jan 2026 | 18 | 4 |
| Jens Castrop | ILL | 19 Dec 2025 | 22 Dec 2025 | 3 | 1 |
| Tim Kleindienst | Knee Surgery | 15 Dec 2025 | 28 Apr 2026 | 134 | 19 |
| Marvin Friedrich | Ankle Problems | 12 Dec 2025 | 31 Dec 2025 | 19 | 2 |
| Franck Honorat | Calf Problems | 3 Dec 2025 | 22 Dec 2025 | 19 | 1 |
| Tim Kleindienst | Knee Problems | 3 Dec 2025 | 14 Dec 2025 | 11 | 1 |
| Robin Hack | Meniscus Injury | 1 Dec 2025 | 2 Mar 2026 | 91 | 13 |
| Jens Castrop | ILL | 1 Dec 2025 | 3 Dec 2025 | 2 | 0 |
 Florian Neuhaus | Muscular Problems | 1 Dec 2025 | 15 Dec 2025 | 14 | 3 |
Unknown player | Mononucleation | 17 Nov 2025 | 31 Dec 2025 | 44 | 6 |
 Philipp Sander | Torn Muscle Fiber | 9 Nov 2025 | 8 Dec 2025 | 29 | 4 |
Unknown player | Adductor Pain | 7 Nov 2025 | 8 Dec 2025 | 31 | 5 |
| Fabio Chiarodia | Torn Muscle Bundle | 27 Oct 2025 | 31 Dec 2025 | 65 | 9 |
| Fabio Chiarodia | Muscular Problems | 23 Oct 2025 | 26 Oct 2025 | 3 | 0 |
 Shuto Machino | ILL | 16 Oct 2025 | 20 Oct 2025 | 4 | 1 |
| Fabio Chiarodia | Torn Muscle Fiber In The Adductor Area | 4 Oct 2025 | 20 Oct 2025 | 16 | 2 |
| Giovanni Reyna | Thigh Problems | 22 Sept 2025 | 13 Oct 2025 | 21 | 2 |
| Robin Hack | Meniscus Tear | 19 Sept 2025 | 10 Nov 2025 | 52 | 8 |
Unknown player | Fitness | 17 Sept 2025 | 30 Sept 2025 | 13 | 0 |
| Franck Honorat | Muscular Problems | 17 Sept 2025 | 13 Oct 2025 | 26 | 3 |
| Wael Mohya | Fitness | 8 Sept 2025 | 22 Sept 2025 | 14 | 1 |
Unknown player | Stomach Flu | 30 Aug 2025 | 2 Sept 2025 | 3 | 1 |
| Giovanni Reyna | Fitness | 18 Aug 2025 | 1 Sept 2025 | 14 | 2 |
Unknown player | Mononucleation | 4 Aug 2025 | 16 Sept 2025 | 43 | 4 |
| Wael Mohya | Inner Knee Ligament Tear | 2 Aug 2025 | 8 Sept 2025 | 37 | 5 |
| Shuto Machino | Calf Problems | 26 Jul 2025 | 18 Aug 2025 | 23 | 3 |
| Kevin Diks | Foot Bruise | 20 Jul 2025 | — | — | 50 |
| Tim Kleindienst | Meniscus Injury | 11 May 2025 | 10 Nov 2025 | 183 | 17 |
| Ko Itakura | Muscular Problems | 9 May 2025 | 12 May 2025 | 3 | 1 |
Unknown player | Fitness | 5 May 2025 | 19 May 2025 | 14 | 2 |
| Marvin Friedrich | Muscular Problems | 28 Apr 2025 | 2 Jun 2025 | 35 | 1 |
 Nico Elvedi | Internal Ligament Strain | 25 Apr 2025 | 5 May 2025 | 10 | 2 |
| Philipp Sander | Fitness | 21 Apr 2025 | 30 Apr 2025 | 9 | 1 |
| Franck Honorat | Back Problems | 14 Apr 2025 | 24 Apr 2025 | 10 | 1 |
Unknown player | Muscle Injury | 14 Apr 2025 | 30 Jun 2025 | 77 | 8 |
| Rocco Reitz | Muscular Problems | 11 Apr 2025 | 18 Apr 2025 | 7 | 1 |
| Nathan Ngoumou | Achilles Tendon Rupture | 7 Apr 2025 | 16 Mar 2026 | 343 | 26 |
Unknown player | ILL | 24 Mar 2025 | — | — | 61 |
| Philipp Sander | Infection | 19 Mar 2025 | 21 Apr 2025 | 33 | 4 |
Unknown player | Torn Muscle Fiber In The Adductor Area | 16 Mar 2025 | 14 Apr 2025 | 29 | 4 |
Unknown player | Outer Ligament Problems | 10 Mar 2025 | — | — | 63 |
Unknown player | Outer Ligament Problems | 7 Mar 2025 | 17 Mar 2025 | 10 | 2 |
Unknown player | Calf Injury | 3 Mar 2025 | 5 May 2025 | 63 | 9 |
 Lukas Ullrich | Knock | 2 Mar 2025 | — | — | 64 |
Unknown player | Fitness | 24 Feb 2025 | 3 Mar 2025 | 7 | 1 |
