Cubs Roster & Staff
Transactions
| Date | Transaction |
| 07/31/10 | Chicago Cubs Traded LHP Ted Lilly and 2B Ryan Theriot to Los Angeles Dodgers; Los Angeles Dodgers Traded Blake DeWitt to Chicago Cubs; Chattanooga Lookouts Traded RHP Kyle Smit to Tennessee Smokies and Great Lakes Loons Traded RHP Brett Wallach to Peoria Chiefs. |
| 07/31/10 | Chicago Cubs Traded LHP Ted Lilly and 2B Ryan Theriot to Los Angeles Dodgers; Los Angeles Dodgers Traded Blake DeWitt to Chicago Cubs; Chattanooga Lookouts Traded RHP Kyle Smit to Tennessee Smokies and Great Lakes Loons Traded RHP Brett Wallach to Peoria Chiefs. |
| 07/31/10 | Chicago Cubs Traded LHP Ted Lilly and 2B Ryan Theriot to Los Angeles Dodgers; Los Angeles Dodgers Traded Blake DeWitt to Chicago Cubs; Chattanooga Lookouts Traded RHP Kyle Smit to Tennessee Smokies and Great Lakes Loons Traded RHP Brett Wallach to Peoria Chiefs. |
| 07/30/10 | Chicago Cubs activated RHP Carlos Zambrano from the restricted list. |
| 07/30/10 | Chicago Cubs released RHP Bob Howry. |
| 07/24/10 | Chicago Cubs signed OF Reggie Golden. |
| 07/23/10 | Brian Schlitter roster status changed by Chicago Cubs. |
| 07/23/10 | Chicago Cubs optioned Jeff Stevens to Iowa Cubs. |
| 07/23/10 | Dallas Beeler assigned to AZL Cubs from Chicago Cubs. |
| 07/22/10 | Chicago Cubs signed RHP Dallas Beeler. |
| 07/20/10 | Chicago Cubs recalled Jeff Stevens from Iowa Cubs. |
| 07/20/10 | Chicago Cubs optioned Mitch Atkins to Iowa Cubs. |
| 07/20/10 | Ryan Hartman assigned to AZL Cubs from Chicago Cubs. |
| 07/19/10 | RHP Carlos Zambrano assigned to AZL Cubs from Chicago Cubs. |
| 07/10/10 | Dustin Geiger assigned to AZL Cubs from Chicago Cubs. |
| 07/10/10 | Colin Richardson assigned to AZL Cubs from Chicago Cubs. |
| 07/09/10 | Chicago Cubs signed RHP Dustin Geiger. |
| 07/09/10 | Chicago Cubs signed RHP Colin Richardson. |
| 07/07/10 | OF Matt Szczur assigned to AZL Cubs from Chicago Cubs. |
| 07/07/10 | Chicago Cubs placed RHP Brian Schlitter on the 15-day disabled list retroactive to July 3, 2010. right shoulder impingement |
| 07/07/10 | Chicago Cubs recalled Mitch Atkins from Iowa Cubs. |
| 07/06/10 | Matt Szczur assigned to Chicago Cubs. |
| 07/05/10 | Chicago Cubs optioned Jeff Stevens to Iowa Cubs. |
| 07/05/10 | Chicago Cubs recalled Justin Berg from Iowa Cubs. |
| 07/02/10 | Chicago Cubs signed OF Matt Szczur. |
| 07/01/10 | Chicago Cubs released 3B Chad Tracy. |