Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/2004 |  | Dario Sala | GK |  | Newell's Old Boys | Newell's OB |
| 01/2004 |  | Adrián García | DF |  | Santos Laguna | Santos Laguna |
| 01/2004 | | Heriberto Morales | DF |  | Deportivo Guadalajara | CD Guadalajara |
| 01/2004 | | Omar Rodríguez | DF | | Deportivo Guadalajara | CD Guadalajara |
| 01/2004 |  | Everaldo Barbosa | MF | |||
| 01/2004 | | Miguel Gómez | MF | |||
| 01/2004 |  | James Owusu-Ansah | MF |  | Cruz Azul | Cruz Azul |
| 01/2004 | | Irving Rubirosa | MF |  | Atlante | Atlante |
| 01/2004 | | Didi | FW |  | Bahia - BA | Bahia |
| 08/2003 | | José Trejo | MA | |||
| 07/2003 | | Omar Ortiz | GK |  | Club Necaxa | Necaxa |
| 07/2003 | | Sergio Almaguer | DF | | Cruz Azul | Cruz Azul |
| 07/2003 | | José Gutiérrez | DF |  | Atlético San Luis | San Luis |
| 07/2003 |  | Luis Romero | DF | | Santos Laguna | Santos Laguna |
| 07/2003 | | Jorge Manrique | MF | |||
| 07/2003 |  | Fernando Martel | MF |  | Cobreloa | Cobreloa |
| 07/2003 | | Salvador Vaca | MF |  | Atlético Cuernavaca | Cuernavaca |
| 07/2003 | | Salvador Cabañas | FW |  | Audax Italiano | Audax Italiano |
| 07/2003 | | Luis Hernández | FW | | Atlético San Luis | San Luis |
| 07/2003 | | Joel Soto | FW |  | Santiago Wanderers | Wanderers |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/2004 | | Edoardo Isella | DF | | Cruz Azul | Cruz Azul |
| 01/2004 | | Fernando Martel | MF | | Atlante | Atlante |
| 01/2004 | | Rafael Márquez | FW |  | Atlético Morelia | Morelia |
| 01/2004 | | Joel Soto | FW |  | Colo-Colo | Colo-Colo |
| 07/2003 | | Adrián Zermeño | GK |  | Gallos Blancos (old) | Gallos Blancos (old) |
| 07/2003 | | Ricardo Cadena | DF |  | Dorados de Sinaloa | Dorados |
| 07/2003 | | Jesús López | DF | | Gallos Blancos (old) | Gallos Blancos (old) |
| 07/2003 | | Pedro Sarabia | DF |  | Libertad | Libertad |
| 07/2003 | | Franz Torres | DF | | Atlante | Atlante |
| 07/2003 | | Luciano De Bruno | MF |  | Talleres de Córdoba | Talleres |
| 07/2003 |  | Silvio Fernandez | FW | | Colo-Colo | Colo-Colo |
| 07/2003 | | Gustavo Nápoles | FW |  | Puebla FC | Puebla |