Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 10/2010 |  | J. P. Rodrigues | DF |  | Fort Lauderdale Strikers | Ft. Lauderdale |
| 09/2010 |  | Junior Carreiro | MF |  | Náutico - PE | Náutico |
| 08/2010 |  | Conor Shanosky | DF | |||
| 08/2010 |  | Carlos Varela | MF |  | Neuchâtel Xamax FCS | Xamax |
| 08/2010 | | Chad Ashton | AS-CO | |||
| 08/2010 | | Jed Zayner | DF |  | Columbus Crew | Columbus Crew |
| 07/2010 |  | Branko Bošković | MF |  | Rapid Vienna | Rapid Vienna |
| 07/2010 |  | Pablo Hernández | MF |  | Defensor Sporting | Defensor |
| 05/2010 | | Stephen King | MF |  | Seattle Sounders | Seattle SFC |
| 04/2010 | | Luciano Emílio | FW |  | Rio Branco - SP | Rio Branco |
| 01/2010 |  | Danny Allsopp | FW |  | Al Rayyan | Al Rayyan |
| 01/2010 | | Curt Onalfo | MA | |||
| 01/2010 | | Ben Olsen | AS-CO | |||
| 01/2010 | | Troy Perkins | GK |  | Vålerenga IF | VIF |
| 01/2010 |  | Lyle Adams | DF | |||
| 01/2010 | | Jordan Graye | DF | |||
| 01/2010 |  | Juan Peña | DF | |||
| 01/2010 | | Barry Rice | DF | |||
| 01/2010 | | Carey Talley | DF |  | CD Chivas | Chivas USA |
| 01/2010 |  | Christian Castillo | MF |  | Club León | Club León |
| 01/2010 |  | Kurt Morsink | MF |  | Sporting Kansas City | Kansas City |
| 01/2010 |  | Floribert N'Galula | MF | |||
| 01/2010 |  | Andy Nájar | MF | |||
| 01/2010 | | Cristian Castillo | FW | |||
| 01/2010 | | Adam Cristman | FW | | Sporting Kansas City | Kansas City |
| 01/2010 | | Kris Kelderman | AS-CO | | Sporting Kansas City | Kansas City |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 09/2010 | | Carey Talley | DF |  | New York RB | New York RB |
| 07/2010 | | Christian Castillo | MF |  | Alianza | Alianza |
| 01/2010 |  | Louis Crayton | GK |  | Minnesota United FC | Minnesota Utd |
| 01/2010 | | Steve Cronin | GK |  | Portland Timbers | Portland |
| 01/2010 | | Greg Janicki | DF |  | Vancouver Whitecaps | Vancouver |
| 01/2010 | | Ely Allen | MF | | Minnesota United FC | Minnesota Utd |
| 01/2010 | | Fred | MF |  | Philadelphia Union | Philadelphia |
| 01/2010 |  | Christian Gómez | MF | | Fort Lauderdale Strikers | Ft. Lauderdale |
| 01/2010 | | Andrew Jacobson | MF | | Philadelphia Union | Philadelphia |
| 01/2010 | | Luciano Emílio | FW | | Rio Branco - SP | Rio Branco |