|12/28/07||Signed RHP Oscar Villarreal to a two-year contract with a club option for 2010.|
|12/27/07||Signed OF/1B Darin Erstad to a one-year contract.|
|12/18/07||Signed RHP Chad Paronto to a one-year contract.|
|12/17/07||Signed RHP Jack Cassel to a one-year contract.|
|12/14/07||Acquired RHP Jose Valverde from the Arizona Diamondbacks in exchange for INF Chris Burke and RHP Juan Gutierrez and RHP Chad Qualls.|
|12/12/07||Acquired SS Miguel Tejada from the Baltimore Orioles in exchange for OF Luke Scott, RHP Matt Albers, LHP Troy Patton, RHP Dennis Sarfate and 3B Mike Costanzo; Claimed RHP Ryan Houston off waivers from the Toronto Blue Jays; Did not offer a 2008 contract to SS Adam Everett, making him a free agent.|
|12/8/07||Added INF Mark Loretta to the 40-man roster after he accepted salary arbitration; Offer to LHP Trever Miller was declined.|
|12/6/07||Selected LHP Wesley Wright from the Dodgers in the Rule 5 Draft.|
|12/2/07||Signed free agent 2B Kazuo Matsui to a three-year contract.|
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