Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2012 |  | Julian de Guzmán | MF |  | Toronto FC | Toronto FC |
| 07/2012 |  | Skylar Richards | AT-C | |||
| 07/2012 |  | Matías Jara | MF |  | Guillermo Brown | Brown |
| 05/2012 |  | James Marcelin | DF | |||
| 04/2012 |  | Jackson | MF |  | Cruzeiro | Cruzeiro |
| 03/2012 |  | Alex Lee | DF | |||
| 02/2012 |  | Luis Perea | FW |  | Universidad San Martín | Uni. San Martín |
| 01/2012 | | Matt Hedges | DF |  | FC Dallas (Preseason) | FC Dallas (Preseason) |
| 01/2012 | | Hernan Pertuz | DF |  | Independiente Medellín | Medellín |
| 01/2012 |  | Carlos Rodríguez | DF |  | Tauro FC | Tauro FC |
| 01/2012 | | Blas Pérez | FW | |||
| 01/2012 |  | Scott Sealy | FW |  | San Jose Earthquakes | Earthquakes |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/2012 |  | Rubén Luna | FW |  | San Antonio Scorpions | San Antonio |
| 07/2012 | | Andrew Wiedeman | FW | | Toronto FC | Toronto FC |
| 06/2012 |  | Moisés Hernández | DF |  | Comunicaciones | Comunicaciones |
| 04/2012 | | Luis Perea | FW | | Universidad San Martín | Uni. San Martín |
| 01/2012 | | Jackson | MF | | Cruzeiro | Cruzeiro |
| 01/2012 | | Oscar Pareja | AS-CO |  | Colorado Rapids | Colorado Rapids |
| 01/2012 |  | Marvin Chávez | MF | | San Jose Earthquakes | Earthquakes |
| 01/2012 |  | Jeremy Hall | MF | | Toronto FC | Toronto FC |
| 01/2012 | | Maicon | FW |  | D.C. United | DC United |