Tigers Roster & Staff
Transactions
| Date | Transaction |
| 08/30/21 | Detroit Tigers recalled LHP Miguel Del Pozo from Toledo Mud Hens. |
| 08/30/21 | Detroit Tigers sent LHP Ian Krol outright to Toledo Mud Hens. |
| 08/30/21 | Detroit Tigers optioned RHP Jason Foley to Toledo Mud Hens. |
| 08/29/21 | Detroit Tigers activated LHP Matthew Boyd. |
| 08/29/21 | Detroit Tigers optioned CF Daz Cameron to Toledo Mud Hens. |
| 08/28/21 | Detroit Tigers released RHP Erasmo Ramirez. |
| 08/28/21 | Detroit Tigers activated RHP Jose Urena. |
| 08/28/21 | Detroit Tigers designated LHP Ian Krol for assignment. |
| 08/27/21 | Detroit Tigers activated C Eric Haase from the 10-day injured list. |
| 08/27/21 | Detroit Tigers signed free agent RHP Pedro Garcia to a minor league contract. |
| 08/27/21 | Detroit Tigers designated RHP Erasmo Ramirez for assignment. |
| 08/27/21 | Detroit Tigers recalled RHP Jason Foley from Toledo Mud Hens. |
| 08/26/21 | Detroit Tigers optioned C Grayson Greiner to Toledo Mud Hens. |
| 08/26/21 | Detroit Tigers sent RHP Drew Hutchison outright to Toledo Mud Hens. |
| 08/26/21 | Detroit Tigers sent 1B Niko Goodrum on a rehab assignment to Toledo Mud Hens. |
| 08/25/21 | Detroit Tigers sent 1B Niko Goodrum on a rehab assignment to Lakeland Flying Tigers. |
| 08/24/21 | Detroit Tigers sent C Eric Haase on a rehab assignment to Toledo Mud Hens. |
| 08/24/21 | Detroit Tigers designated RHP Drew Hutchison for assignment. |
| 08/23/21 | Detroit Tigers sent 3B Renato Nunez outright to Toledo Mud Hens. |
| 08/22/21 | Detroit Tigers placed RHP Wily Peralta on the 10-day injured list. Right finger blister. |
| 08/22/21 | Detroit Tigers recalled RHP Alex Lange from Toledo Mud Hens. |
| 08/21/21 | Detroit Tigers designated 3B Renato Nunez for assignment. |
| 08/21/21 | Detroit Tigers activated CF Derek Hill. |
| 08/20/21 | Detroit Tigers placed RF Akil Baddoo on the 10-day injured list. Concussion. |
| 08/19/21 | Detroit Tigers activated CF Daz Cameron. |
| 08/19/21 | Detroit Tigers placed C Eric Haase on the 10-day injured list. Right abdominal strain. |
| 08/18/21 | Detroit Tigers sent RF Akil Baddoo on a rehab assignment to Toledo Mud Hens. |
| 08/18/21 | Detroit Tigers placed C Jake Rogers on the 60-day injured list. Right arm soreness. |
| 08/18/21 | Detroit Tigers optioned SS Isaac Paredes to Toledo Mud Hens. |
| 08/18/21 | Detroit Tigers sent CF Derek Hill on a rehab assignment to Toledo Mud Hens. |
| 08/18/21 | Detroit Tigers optioned CF Jacob Robson to Toledo Mud Hens. |
| 08/18/21 | Colorado Rockies traded C Dustin Garneau, and to Detroit Tigers. |
| 08/17/21 | Detroit Tigers sent SS Isaac Paredes on a rehab assignment to Toledo Mud Hens. |
| 08/17/21 | Detroit Tigers sent RHP Jose Urena on a rehab assignment to Toledo Mud Hens. |
| 08/17/21 | Detroit Tigers released RHP Buck Farmer. |
| 08/15/21 | Detroit Tigers selected the contract of RHP Drew Hutchison from Toledo Mud Hens. |
| 08/15/21 | Detroit Tigers designated RHP Buck Farmer for assignment. |
| 08/12/21 | Detroit Tigers placed 1B Niko Goodrum on the 10-day injured list. Left groin strain. |
| 08/12/21 | Detroit Tigers sent LHP Matthew Boyd on a rehab assignment to Toledo Mud Hens. |
| 08/12/21 | Detroit Tigers sent SS Isaac Paredes on a rehab assignment to Lakeland Flying Tigers. |
| 08/12/21 | Detroit Tigers placed LHP Matthew Boyd on the 60-day injured list. Left arm discomfort. |
| 08/12/21 | Detroit Tigers selected the contract of CF Jacob Robson from Toledo Mud Hens. |
| 08/11/21 | Detroit Tigers placed RF Akil Baddoo on the 7-day injured list. Concussion. |
| 08/11/21 | Detroit Tigers recalled SS Zack Short from Toledo Mud Hens. |
| 08/11/21 | Detroit Tigers selected the contract of 3B Renato Nunez from Toledo Mud Hens. |
| 08/11/21 | Detroit Tigers placed CF Derek Hill on the 10-day injured list. Left ribcage contusion. |
| 08/11/21 | Detroit Tigers sent CF Daz Cameron on a rehab assignment to Toledo Mud Hens. |
| 08/10/21 | Detroit Tigers activated 1B Niko Goodrum. |
| 08/10/21 | Detroit Tigers optioned SS Zack Short to Toledo Mud Hens. |
| 08/05/21 | Detroit Tigers signed C Josh Crouch. |
| 08/03/21 | Detroit Tigers sent SS Isaac Paredes on a rehab assignment to Toledo Mud Hens. |
| 08/02/21 | Detroit Tigers claimed RHP Nivaldo Rodriguez off waivers from Houston Astros. |
| 08/02/21 | Detroit Tigers optioned RHP Nivaldo Rodriguez to Toledo Mud Hens. |