Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2005 |  | Alex Varas | GK |  | Audax Italiano | Audax Italiano |
| 07/2005 | | David Henríquez | DF |  | Atlético Morelia | Morelia |
| 07/2005 | | Álvaro Ormeño | DF |  | Everton | Everton |
| 07/2005 | | Arturo Vidal | DF |  | Colo-Colo U20 | U20 |
| 07/2005 | | José Luis Jerez | MF | |||
| 07/2005 |  | Lê | MF |  | Rio Branco - SP | Rio Branco |
| 07/2005 | | Héctor Mancilla | FW | |||
| 07/2005 | | Humberto Suazo | FW | | Audax Italiano | Audax Italiano |
| 07/2005 |  | Claudio Borghi | MA | |||
| 02/2005 | | Jorge Valdivia | MF |  | Servette FC | Servette |
| 01/2005 | | Eduardo Lobos | GK | | Audax Italiano | Audax Italiano |
| 01/2005 | | Sebastian Montesinos | DF | |||
| 01/2005 |  | Daniel Sanabria | DF |  | Libertad | Libertad |
| 01/2005 | | Enzo Vera | DF | |||
| 01/2005 | | Alejandro Carrasco | MF | | Audax Italiano | Audax Italiano |
| 01/2005 | | Ángel Carreño | MF |  | Palestino | Palestino |
| 01/2005 | | Arturo Sanhueza | MF |  | Santiago Wanderers | Wanderers |
| 01/2005 | | Alejandro Vásquez | MF |  | Universidad de Concepción | Universidad de Concepción |
| 01/2005 | | Juan Lucero | FW |  | Coquimbo Unido | Coquimbo Unido |
| 01/2005 | | Héctor Tapia | FW |  | Cruzeiro | Cruzeiro |
| 01/2005 | | Marcelo Espina | MA |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2005 | | Víctor Loyola | GK |  | Puerto Montt | Puerto Montt |
| 07/2005 | | Carlos Cisternas | DF |  | CD Magallanes | CD Magallanes |
| 07/2005 | | Daniel Sanabria | DF |  | Sportivo Luqueño | Luqueño |
| 07/2005 | | Enzo Vera | DF |  | Deportes Temuco | Deportes Temuco |
| 07/2005 | | Alejandro Carrasco | MF |  | Deportes Melipilla | Dep. Melipilla |
| 07/2005 | | Ángel Carreño | MF |  | Örebro SK | Örebro SK |
| 07/2005 | | Mauricio Donoso | MF | | Everton | Everton |
| 07/2005 | | Germán Real | FW |  | Blooming | Blooming |
| 03/2005 | | Eduardo Lobos | GK |  | Krylia Sovetov | Krylia Sovetov |
| 01/2005 | | Dario Cajaravilla | DF |  | All Boys | All Boys |
| 01/2005 | | Ismael Fuentes | DF |  | Gallos Blancos | Querétaro |
| 01/2005 | | Marco Millape | MF |  | Cobreloa | Cobreloa |
| 01/2005 | | Adrián Fernández | FW |  | The Strongest | The Strongest |
| 01/2005 | | Marcelo Verón | FW |  | Novelda CF | Novelda CF |