Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 09/2008 |  | Dejair Ferreira | MF | |||
| 09/2008 |  | Sasha Victorine | MF |  | Sporting Kansas City | Kansas City |
| 08/2008 | | Zach Thornton | GK |  | New York RB | New York RB |
| 07/2008 |  | Roberto Nurse | FW |  | Gallos Blancos (old) | Gallos Blancos (old) |
| 05/2008 | | Carey Talley | DF |  | Real Salt Lake | Salt Lake |
| 04/2008 | | Eric Ebert | DF | |||
| 03/2008 |  | Chris Poźniak | DF |  | San Jose Earthquakes | Earthquakes |
| 03/2008 | | Justin Braun | FW | |||
| 01/2008 |  | Raphaël Wicky | MF |  | FC Sion | FC Sion |
| 01/2008 | | Keith Savage | MF | |||
| 01/2008 | | Dan Kennedy | GK | |||
| 01/2008 | | Lance Parker | GK | |||
| 01/2008 | | Bobby Burling | DF | |||
| 01/2008 | | Jim Curtin | DF |  | Chicago Fire | Chicago Fire |
| 01/2008 | | Kraig Chiles | MF | |||
| 01/2008 |  | Atiba Harris | MF | | Real Salt Lake | Salt Lake |
| 01/2008 | | Daniel Paladini | MF | |||
| 01/2008 | | Alecko Eskandarian | FW | | Real Salt Lake | Salt Lake |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/2008 | | Brad Guzan | GK |  | Aston Villa | Aston Villa |
| 05/2008 | | Chris Poźniak | DF |  | Vancouver Whitecaps | Vancouver |
| 04/2008 |  | John Cunliffe | FW | | San Jose Earthquakes | Earthquakes |
| 01/2008 | | Preston Burpo | GK | | San Jose Earthquakes | Earthquakes |
| 01/2008 |  | Jason Hernández | DF | | San Jose Earthquakes | Earthquakes |
| 01/2008 |  | Amado Guevara | MF |  | Toronto FC | Toronto FC |
| 01/2008 | | Ramón Nuñez | MF |  | CD Olimpia | CD Olimpia |