Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 09/2012 |  | Guillermo Franco | FW | |||
| 09/2012 |  | Wells Thompson | MF |  | Colorado Rapids | Colorado Rapids |
| 07/2012 |  | Álvaro Fernández | MF |  | Seattle Sounders | Seattle SFC |
| 07/2012 |  | Sherjill MacDonald | FW |  | Beerschot AC | Beerschot |
| 06/2012 |  | Alex | MF |  | FC Wohlen | FC Wohlen |
| 04/2012 | | Chris Rolfe | FW |  | Aalborg BK | Aalborg BK |
| 03/2012 |  | Paolo Tornaghi | GK | |||
| 03/2012 |  | Arne Friedrich | DF | |||
| 01/2012 |  | Evans Frimpong | MF | |||
| 01/2012 | | Tony Walls | MF | |||
| 01/2012 | | Austin Berry | DF | |||
| 01/2012 | | Hunter Jumper | DF | |||
| 01/2012 | | Federico Puppo | FW |  | Danubio | Danubio |
| 01/2012 |  | Rafael Robayo | MF |  | Millonarios | Millonarios |
| 01/2012 | | Mike Matkovich | AS-CO | |||
| 01/2012 | | Jay Nolly | GK |  | Vancouver Whitecaps | Vancouver |
| 01/2012 | | Kellen Gulley | FW |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 09/2012 |  | Orr Barouch | FW |  | Bnei Yehuda Tel Aviv | Bnei Yehuda Tel |
| 09/2012 |  | Marco Pappa | MF |  | Sc Heerenveen | Heerenveen |
| 08/2012 | | Sébastián Grazzini | MF |  | Atlético Rafaela | Atlético Rafael |
| 08/2012 |  | Kheli Dube | FW |  | AmaZulu FC | AmaZulu |
| 07/2012 | | Rafael Robayo | MF | | Millonarios | Millonarios |
| 07/2012 | | Federico Puppo | FW |  | Defensor Sporting | Defensor |
| 07/2012 | | Pari Pantazopoulos | DF |  | Puerto Rico Islanders | Islanders |
| 06/2012 | | Kwame Watson-Siriboe | DF |  | Real Salt Lake | Salt Lake |
| 01/2012 | | Yamith Cuesta | DF |  | UB Conquense | UB Conquense |
| 01/2012 | | Mike Banner | MF |  | FF Jaro | FF Jaro |
| 01/2012 |  | Baggio Hušidić | MF |  | Hammarby IF | Hammarby |
| 01/2012 | | Diego Cháves | FW |  | Palestino | Palestino |
| 01/2012 | | Cristian Nazarit | FW |  | Deportivo Cali | Deportivo Cali |