| Date | Transaction | |||
| 12/27/03 | Signed LHP Valerio De Los Santos to a one-year contract. | |||
| 12/21/03 | Nontendered RHP Cliff Politte, making him a free agent. Politte had been designated for assignment 12/15. Nontendered LHP Trever Miller, making him a free agent. | |||
| 12/16/03 | Signed LHP Mike Kusiewicz to a minor league contract. | |||
| 12/15/03 | Designated RHP Cliff Politte for assignment. | |||
| Picked RHP pitcher Talley Haines from Tampa organization in Rule 5 Draft. Lost RHP Mark Comoli to the Rays; LHP pitcher Ryan Costello to the Brewers; LHP Eric Stephenson to the White Sox; IF Kurt Keene to the Phillies; and RHP pitcher Pete Bauer to the Marlins in Triple-A phase of Draft. | ||||
| 12/14/03 | Acquired RHP Justin Speier from the Colorado Rockies in exchange for LHP Mark Hendrickson and a player to be named later. | |||
| 12/12/03 | Agreed to terms with RHP Miguel Batista on a three-year, $13.1 million contract. | |||
| 12/8/03 | Kerry Ligtenberg: Signed free agent RHP Kerry Ligtenberg to a two-year $4.5 million contract. | |||
| 12/3/03 | Signed LHP Chi-Hung Cheng to a minor league contract. | |||
