Cubs Roster & Staff
Transactions
| Date | Transaction |
| 07/31/20 | Chicago Cubs signed free agent RHP Cody Allen to a minor league contract and invited him to spring training. |
| 07/30/20 | Chicago Cubs optioned RHP Dillon Maples to Cubs Alternate Training Site. |
| 07/30/20 | Chicago Cubs recalled Colin Rea from Cubs Alternate Training Site. |
| 07/28/20 | Chicago Cubs signed free agent LHP Scott Kobos to a minor league contract. |
| 07/26/20 | Chicago Cubs placed LHP Brad Wieck on the 10-day injured list. Right hamstring strain. |
| 07/26/20 | Chicago Cubs recalled RHP Ryan Tepera from Cubs Alternate Training Site. |
| 07/26/20 | Cincinnati Reds claimed 2B Robel Garcia off waivers from Chicago Cubs. |
| 07/23/20 | Chicago Cubs signed free agent OF Ryan LaMarre to a minor league contract and invited him to spring training. |
| 07/23/20 | Chicago Cubs selected the contract of C Josh Phegley from Cubs Alternate Training Site. |
| 07/23/20 | Chicago Cubs recalled RHP James Norwood from Cubs Alternate Training Site. |
| 07/23/20 | Chicago Cubs placed LHP Jose Quintana on the 10-day injured list retroactive to July 20, 2020. Left thumb nerve injury . |
| 07/23/20 | Chicago Cubs placed RF Mark Zagunis on the restricted list. |
| 07/23/20 | Chicago Cubs signed free agent 2B Derek Dietrich to a minor league contract and invited him to spring training. |
| 07/23/20 | Chicago Cubs optioned RHP Ryan Tepera to Cubs Alternate Training Site. |
| 07/23/20 | Chicago Cubs placed 2B Daniel Descalso on the 60-day injured list. Left ankle sprain. |
| 07/23/20 | Chicago Cubs designated 2B Robel Garcia for assignment. |
| 07/23/20 | Chicago Cubs optioned RHP Jharel Cotton to Cubs Alternate Training Site. |
| 07/23/20 | Chicago Cubs selected the contract of Rex Brothers from Cubs Alternate Training Site. |
| 07/23/20 | Chicago Cubs recalled Dillon Maples from Cubs Alternate Training Site. |
| 07/22/20 | Chicago Cubs signed OF Jordan Nwogu. |
| 07/21/20 | Chicago Cubs signed free agent RHP Ben Leeper to a minor league contract. |
| 07/21/20 | Chicago Cubs signed free agent RHP Sheldon Reed to a minor league contract. |
| 07/21/20 | Chicago Cubs invited non-roster LHP Burl Carraway to spring training. |
| 07/17/20 | Chicago Cubs sent RHP Trevor Megill outright to Cubs Alternate Training Site. |
| 07/17/20 | Chicago Cubs selected the contract of 2B Jason Kipnis from Iowa Cubs. |
| 07/15/20 | Chicago Cubs invited non-roster RHP Cory Abbott to spring training. |
| 07/14/20 | Chicago Cubs invited non-roster LHP Jack Patterson to spring training. |
| 07/14/20 | Chicago Cubs signed free agent C Jose Lobaton to a minor league contract and invited him to spring training. |
| 07/14/20 | Chicago Cubs invited non-roster RHP Keegan Thompson to spring training. |
| 07/08/20 | Chicago Cubs signed free agent RHP Angel Gonzalez to a minor league contract. |
| 07/07/20 | Chicago Cubs invited non-roster 2B Hernan Perez to spring training. |
| 07/04/20 | Chicago Cubs signed free agent RHP Sam Thoresen to a minor league contract. |