Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/2011 |  | Luiz Camargo | MF |  | Paraná Clube | Paraná Clube |
| 08/2011 |  | Carlo Costly | FW |  | Atlas Guadalajara | Atlas |
| 07/2011 |  | Adam Moffat | MF |  | Portland Timbers | Portland |
| 04/2011 |  | Je-Vaughn Watson | DF |  | Sporting Central | Sporting Central |
| 04/2011 |  | Koke | FW |  | Aris Saloniki | Aris Saloniki |
| 03/2011 |  | Calen Carr | FW |  | Chicago Fire | Chicago Fire |
| 02/2011 | | Evan Newton | GK | |||
| 01/2011 | | Alex Dixon | FW | |||
| 01/2011 | | Kofi Sarkodie | DF | |||
| 01/2011 | | Will Bruin | FW | |||
| 01/2011 | | Hunter Freeman | DF |  | IK Start | IK Start |
| 01/2011 | | Jordan Graye | DF |  | D.C. United | DC United |
| 01/2011 | | Jermaine Taylor | DF |  | St. George's SC | St. George's SC |
| 01/2011 | | Colin Clark | MF |  | Colorado Rapids | Colorado Rapids |
| 01/2011 | | Josue Soto | MF | |||
| 01/2011 | | Jason Garey | FW |  | Columbus Crew | Columbus Crew |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2011 | | Lovel Palmer | DF | | Portland Timbers | Portland |
| 07/2011 | | Mike Chabala | DF | | Portland Timbers | Portland |
| 05/2011 | | Evan Newton | GK |  | Tampa Bay Rowdies | Tampa Bay |
| 03/2011 |  | Dominic Oduro | FW | | Chicago Fire | Chicago Fire |
| 01/2011 |  | Pat Onstad | GK | | D.C. United | DC United |
| 01/2011 | | Ryan Cochrane | DF |  | New England Revolution | New Engl. |
| 01/2011 |  | Joseph Ngwenya | FW | | D.C. United | DC United |