Off-season
- November 2, 2001: Mark Bellhorn was traded by the Athletics to the Chicago Cubs for Adam Morrissey (minors).
- December 14, 2001: David Justice was traded by the New York Yankees to the Athletics for Mark Guthrie and Tyler Yates.
- January 11, 2002: Randy Velarde was signed as a Free Agent with the Athletics.
- March 19, 2002: Justin Duchscherer was traded by the Texas Rangers to the Athletics for Luis Vizcaíno.
Read more about this topic: 2002 Oakland Athletics Season