Transactions| Date | Transaction | |||
| 1/31/03 | Scott Linebrink: The Astros invited Scott Linebrink, RHP, to Spring Training as a non-roster invitee. | |||
| Craig Biggio: The Astros signed Craig Biggio to one-year contract extension with an option for a second year. | ||||
| 1/25/03 | Daryle Ward: The Astros traded Daryle Ward, OF, to the Dodgers in exchange for minor leaguer Ruddy Lugo, RHP. | |||
| 1/17/03 | Geoff Blum: The Astros signed Geoff Blum, INF, and Brian Moehler, RHP, to one-year contracts. | |||
| 1/16/03 | Octavio Dotel: The Astros signed Octavio Dotel, RHP, and Daryle Ward, OF, to one-year contracts. | |||
