| Date | Player | Pos. | Transaction |
| 7/19 | Billy Buckner | P | Called Up from Minors |
| 7/19 | Doug Slaten | P | Placed on 15-Day DL, (Strained right knee) |
| 7/18 | Justin Upton | RF | Placed on 15-Day DL, (Left oblique strain) |
| 7/18 | Chris Snyder | C | Sent to Minors, For Rehabilitation |
| 7/17 | Tony Clark | 1B | Traded From, San Diego (for RHP Evan Scribner) |
| 7/9 | Jeff Salazar | LF | Outrighted to Minors |
| 7/7 | Connor Robertson | P | Called Up from Minors |
| 7/7 | Juan Cruz | P | Placed on 15-Day DL, (Left oblique strain) |
| 7/4 | Connor Robertson | P | Sent to Minors |
| 7/4 | Alex Romero | CF | Called Up from Minors |
| 7/4 | Jeff Salazar | LF | Designated for Assignment |
| 7/4 | Emilio Bonifacio | 2B | Called Up from Minors |
| 7/1 | Connor Robertson | P | Purchased From Minors |
| 7/1 | Eric Byrnes | LF | Placed on 15-Day DL, (Strained left hamstring) |
| 7/1 | Robby Hammock | C | Called Up from Minors |
| 7/1 | Chris Snyder | C | Placed on 15-Day DL, (Left testicular fracture) |
| 6/28 | Edgar Gonzalez | P | Placed on 15-Day DL, (Strained right elbow) |
| 6/28 | Yusmeiro Petit | P | Called Up from Minors |
| 6/23 | Eric Byrnes | LF | Removed From 15-Day DL, (Strained right hamstring) |
| 6/23 | Alex Romero | CF | Sent to Minors |
| 6/23 | Eric Byrnes | LF | Recalled From Minors, Rehab Assignment |
| 6/19 | Eric Byrnes | LF | Sent to Minors, For Rehabilitation |
| 6/15 | Leo Rosales | P | Called Up from Minors |
| 6/15 | Billy Buckner | P | Sent to Minors |
| 6/13 | Billy Buckner | P | Called Up from Minors |
| 6/13 | Max Scherzer | P | Sent to Minors |
| 5/31 | Brandon Medders | P | Outrighted to Minors |
| 5/27 | Alex Romero | CF | Called Up from Minors |
| 5/27 | Eric Byrnes | LF | Placed on 15-Day DL, (Strained right hamstring) |
| 5/26 | Robby Hammock | C | Sent to Minors |
| 5/26 | Chad Tracy | 3B | Removed From 15-Day DL, (Recovery from right knee surgery) |
| 5/26 | Chad Tracy | 3B | Recalled From Minors, Rehab Assignment |
| 5/23 | Doug Davis | P | Removed From 15-Day DL, (Thyroid surgery - out 4-6 weeks) |
| 5/23 | Doug Davis | P | Recalled From Minors, Rehab Assignment |
| 5/22 | Brandon Medders | P | Designated for Assignment |
| 5/10 | Doug Davis | P | Sent to Minors, For Rehabilitation |
| 5/6 | Chad Tracy | 3B | Sent to Minors, For Rehabilitation |
| 4/27 | Yusmeiro Petit | P | Sent to Minors |
| 4/23 | Miguel Montero | C | Recalled From Minors, Rehab Assignment |
| 4/23 | Miguel Montero | C | Removed From 15-Day DL, (Fractured right index finger) |
| 4/22 | Alex Romero | CF | Sent to Minors |
| 4/14 | Randy Johnson | P | Recalled From Minors, Rehab Assignment |
| 4/14 | Randy Johnson | P | Removed From 15-Day DL, (Recovery from back surgery) |
| 4/13 | Jailen Peguero | P | Sent to Minors |
| 4/11 | Miguel Montero | C | Sent to Minors, For Rehabilitation |
| 4/9 | Jailen Peguero | P | Called Up from Minors |
| 4/9 | Doug Davis | P | Placed on 15-Day DL, (Thyroid surgery - out 4-6 weeks) |
| 4/7 | Jon Coutlangus | P | Sent to Minors |
| 4/7 | Chris Young | CF | Signed, ( 2009-2013; Opt 2014)(five-year extension) |
| 4/7 | Jon Coutlangus | P | Traded From, Cincinnati (for OF Daniel Perales) |
| 4/3 | Randy Johnson | P | Sent to Minors, For Rehabilitation |
| 3/30 | Chad Tracy | 3B | Placed on 15-Day DL, (Recovery from right knee surgery) |
| 3/30 | Miguel Montero | C | Placed on 15-Day DL, (Fractured right index finger) |
| 3/30 | Randy Johnson | P | Placed on 15-Day DL, (Recovery from back surgery) |
| 3/26 | Juan Gutierrez | P | Sent to Minors |
| 3/24 | Billy Buckner | P | Sent to Minors |
| 3/16 | Emilio Bonifacio | 2B | Sent to Minors |
| 3/16 | Emiliano Fruto | P | Sent to Minors |
| 3/14 | Bill Murphy | P | Designated for Assignment |
| 2/21 | Trot Nixon | RF | Signed to a Minor League Contract |
| More Transactions |
| Posted Sun Jul 20 19:22:55 EDT 2008 |
