Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/2013 |  | Dennis Iapichino | DF |  | CF Montréal | Montréal |
| 07/2013 |  | Collin Martin | MF | |||
| 07/2013 |  | Luis Silva | MF |  | Toronto FC | Toronto FC |
| 07/2013 | | Jared Jeffrey | MF |  | Richmond Kickers | Richmond Kickers |
| 07/2013 | | Conor Doyle | FW |  | Derby County | Derby |
| 06/2013 | | Alain Rochat | DF |  | Vancouver Whitecaps | Vancouver |
| 06/2013 | | Conor Shanosky | DF | | Richmond Kickers | Richmond Kickers |
| 05/2013 |  | Sainey Nyassi | MF | |||
| 03/2013 |  | Marcos Sánchez | MF |  | Tauro FC | Tauro FC |
| 02/2013 |  | Kyle Porter | MF | |||
| 01/2013 |  | Syamsir Alam | FW |  | CS Visé | CS Visé |
| 01/2013 | | Casey Townsend | FW |  | CD Chivas | Chivas USA |
| 01/2013 | | Taylor Kemp | DF | |||
| 01/2013 |  | Michael Seaton | FW | | Richmond Kickers | Richmond Kickers |
| 01/2013 | | James Riley | DF | | CD Chivas | Chivas USA |
| 01/2013 | | John Thorrington | MF | | Vancouver Whitecaps | Vancouver |
| 01/2013 |  | Rafael Gladiator | FW |  | Bahia - BA | Bahia |
| 01/2013 |  | Carlos Ruíz | FW |  | Atlético San Luis | San Luis |
| 01/2013 | | Amos Magee | AS-CO |  | Portland Timbers | Portland |
| 01/2013 | | Preston Burpo | GK-CO | |||
| 01/2013 | | Gabriel Manoel | RE-C |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2013 | | Alain Rochat | DF |  | BSC Young Boys | Young Boys |
| 07/2013 |  | Brandon McDonald | MF |  | Real Salt Lake | Salt Lake |
| 07/2013 | | Raphael Augusto | MF |  | Legia Warszawa | Legia |
| 07/2013 | | Marcos Sánchez | MF | | Tauro FC | Tauro FC |
| 07/2013 | | Rafael Gladiator | FW |  | Atlético Goianiense | Atlético |
| 02/2013 | | Mike Chabala | DF |  | Houston Dynamo | H. Dynamo |
| 02/2013 |  | Hamdi Salihi | FW |  | Jiāngsū FC | Jiangsu FC |
| 01/2013 |  | Andy Nájar | MF |  | RSC Anderlecht | Anderlecht |
| 01/2013 |  | Emiliano Dudar | DF |  | FC Chiasso | FC Chiasso |
| 01/2013 |  | Branko Bošković | MF |  | Rapid Vienna | Rapid Vienna |
| 01/2013 | | Maicon | FW |  | Chicago Fire | Chicago Fire |