Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/2010 |  | Jackson | MF |  | São Paulo FC | São Paulo FC |
| 07/2010 |  | Moisés Hernández | DF | |||
| 07/2010 |  | Victor Ulloa | MF | |||
| 07/2010 | | Rubén Luna | FW | |||
| 07/2010 |  | Milton Rodríguez | FW | |||
| 07/2010 |  | Chris Sharpe | GK |  | Los Angeles Galaxy | L.A. Galaxy |
| 03/2010 |  | Eddie Edward | DF | |||
| 01/2010 |  | Zach Loyd | DF | |||
| 01/2010 | | Eric Alexander | MF | |||
| 01/2010 | | Jason Yeisley | FW | |||
| 01/2010 | | Kevin Hartman | GK |  | Sporting Kansas City | Kansas City |
| 01/2010 | | Andrew Wiedeman | FW |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 11/2010 | | Chris Sharpe | GK |  | Colorado Rapids | Colorado Rapids |
| 09/2010 | | Josh Lambo | GK |  | Tampa Bay Rowdies | Tampa Bay |
| 07/2010 | | Anthony Wallace | MF | | Colorado Rapids | Colorado Rapids |
| 01/2010 | | Steven Purdy | DF |  | Portland Timbers | Portland |
| 01/2010 | | Blake Wagner | DF |  | Vancouver Whitecaps | Vancouver |
| 01/2010 |  | Álvaro Sánchez | MF |  | AD San Carlos | San Carlos |
| 01/2010 | | Peri Marosevic | FW |  | Austin Aztex | Austin Aztex |
| 01/2010 | | Jamie Watson | FW | | Austin Aztex | Austin Aztex |