Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/2012 |  | Lionard Pajoy | FW |  | Philadelphia Union | Philadelphia |
| 07/2012 |  | Mike Chabala | DF |  | Portland Timbers | Portland |
| 07/2012 |  | Raphael Augusto | MF | |||
| 06/2012 |  | Long Tan | FW |  | Vancouver Whitecaps | Vancouver |
| 03/2012 |  | Lewis Neal | MF | |||
| 03/2012 | | Lance Rozeboom | MF | |||
| 02/2012 | | Andrew Dykstra | GK |  | Richmond Kickers | Richmond Kickers |
| 02/2012 |  | Hamdi Salihi | FW |  | Rapid Vienna | Rapid Vienna |
| 01/2012 | | Danny Cruz | MF |  | Houston Dynamo | H. Dynamo |
| 01/2012 | | Nick DeLeon | MF | |||
| 01/2012 |  | Emiliano Dudar | DF |  | BSC Young Boys | Young Boys |
| 01/2012 | | Robbie Russell | DF |  | Real Salt Lake | Salt Lake |
| 01/2012 | | Marcelo Saragosa | MF |  | Rävan Baku | Rävan Baku |
| 01/2012 | | Maicon | FW |  | FC Dallas | FC Dallas |
| 01/2012 | | Josh Wolff | AS-CO |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/2012 | | Danny Cruz | MF | | Philadelphia Union | Philadelphia |
| 01/2012 | | Marc Burch | DF |  | Seattle Sounders | Seattle SFC |
| 01/2012 | | Brandon Barklage | MF |  | New York RB | New York RB |
| 01/2012 | | Clyde Simms | MF |  | New England Revolution | New Engl. |
| 01/2012 | | Blake Brettschneider | FW | | New England Revolution | New Engl. |
| 01/2012 | | Charlie Davies | FW |  | FC Sochaux | Sochaux |