Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/1998 |  | Oscar Pareja | MF |  | New England Revolution | New Engl. |
| 07/1998 |  | Brian Bates | DF |  | Chicago Fire | Chicago Fire |
| 07/1998 | | Chad Deering | MF |  | VfL Wolfsburg | Wolfsburg |
| 06/1998 | | Chris Brown | DF | |||
| 06/1998 | | Juan Sastoque | FW | |||
| 04/1998 |  | Damián Álvarez | FW |  | Deportivo Guadalajara | CD Guadalajara |
| 03/1998 | | Darren Sawatzky | FW | |||
| 01/1998 | | Matt Jordan | GK | |||
| 01/1998 | | Leonel Álvarez | MF |  | Atlético San Luis | San Luis |
| 01/1998 |  | Mickey Trotman | MF |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/1998 | | Tom Soehn | DF | | Chicago Fire | Chicago Fire |
| 01/1998 |  | Diego Soñora | DF |  | New York RB | New York RB |
| 01/1998 | | Wade Webber | DF |  | Miami Fusion | Miami Fusion |
| 01/1998 | | Daniel Peinado | MF |  | Platense | Platense |
| 01/1998 | | Damián Álvarez | FW | | Deportivo Guadalajara | CD Guadalajara |