Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/2015 |  | Christian Lucatero | MF | |||
| 07/2015 | | Sheanon Williams | DF |  | Philadelphia Union | Philadelphia |
| 07/2015 |  | Rasheed Olabiyi | MF |  | Enyimba Aba | Enyimba |
| 07/2015 |  | Érick Torres | FW |  | Deportivo Guadalajara | CD Guadalajara |
| 05/2015 | | A.J. Cochran | DF |  | Charleston Battery | Charleston Battery |
| 05/2015 |  | Mauro Manotas | FW |  | Uniautónoma FC | Uniautónoma FC |
| 04/2015 |  | Alex | MF |  | Chicago Fire | Chicago Fire |
| 02/2015 |  | Oumar Ballo | DF | |||
| 02/2015 | | Taylor Hunter | DF |  | Colorado Springs Switchbacks | Colorado Springs Switchbacks |
| 01/2015 | | Rob Lovejoy | MF | |||
| 01/2015 | | Zach Steinberger | MF |  | Indy Eleven | Indy Eleven |
| 01/2015 |  | Raúl Rodríguez | DF |  | RCD Espanyol | RCD Espanyol |
| 01/2015 | | Joe Willis | GK |  | D.C. United | DC United |
| 01/2015 |  | Leonel Miranda | MF |  | Independiente | Independiente |
| 01/2015 | | Memo Rodríguez | MF | |||
| 01/2015 | | Nathan Sturgis | MF |  | CD Chivas | Chivas USA |
| 01/2015 | | Chandler Hoffman | FW |  | Los Angeles Galaxy | L.A. Galaxy |
| 01/2015 |  | Owen Coyle | MA | |||
| 01/2015 |  | Oliver Gage | AS-CO | |||
| 01/2015 | | Paul Rogers | GK-CO | |||
| 01/2015 | | Paul Caffrey | AT-C | | CD Chivas | Chivas USA |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2015 | | Corey Ashe | DF |  | Orlando City | Orlando City |
| 05/2015 | | A.J. Cochran | DF | | Charleston Battery | Charleston Battery |
| 04/2015 |  | Jason Johnson | FW | | Chicago Fire | Chicago Fire |
| 03/2015 | | Oumar Ballo | DF | | Charleston Battery | Charleston Battery |
| 01/2015 | | Servando Carrasco | MF |  | Sporting Kansas City | Kansas City |
| 01/2015 | | Tally Hall | GK | | Orlando City | Orlando City |
| 01/2015 | | Omar Cummings | FW |  | San Antonio Scorpions | San Antonio |
| 01/2015 | | Mark Sherrod | FW |  | San Jose Earthquakes | Earthquakes |