Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/1999 |  | José Luis Sierra | MF |  | UANL Tigres | Tigres |
| 07/1999 | | Mario Cáceres | FW | |||
| 07/1999 | | Fernando Vergara | FW |  | Rayo Vallecano | Rayo |
| 01/1999 |  | Felipe Núñez | GK | |||
| 01/1999 |  | Marquinhos | MF |  | Bahia - BA | Bahia |
| 01/1999 | | Cristián Uribe | MF |  | Huachipato | Huachipato |
| 01/1999 | | Cristián Montecinos | FW |  | Universidad de Concepción | Universidad de Concepción |
| 01/1999 | | Manuel Neira | FW |  | UD Las Palmas | UD Las Palmas |
| 01/1999 | | Ricardo Viveros | FW |  | Argentinos Juniors | Arg. Juniors |
| 01/1999 | | Nelsinho Baptista | MA |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/1999 | | Pablo Contreras | DF |  | AS Monaco | AS Monaco |
| 07/1999 |  | Marcelo Espina | MF |  | Racing Santander | Racing |
| 07/1999 | | Raúl Muñoz | MF |  | CD Numancia | Numancia |
| 01/1999 | | Alex Whiteley | GK |  | Cobreloa | Cobreloa |
| 01/1999 | | José Yates | GK |  | Deportes Iquique | Deportes Iquique |
| 01/1999 | | Pedro Reyes | DF |  | AJ Auxerre | Auxerre |
| 01/1999 | | Frank Lobos | MF |  | La Serena | La Serena |
| 01/1999 | | José Luis Sierra | MF | | UANL Tigres | Tigres |
| 01/1999 | | Francis Ferrero | FW |  | Santiago Wanderers | Wanderers |
| 01/1999 | | Héctor Tapia | FW |  | Universidad Católica | U. Católica |