Offseason
- October 24, 1988: Eric Bullock, Tom Herr and Tom Nieto were traded by the Twins to the Philadelphia Phillies for Shane Rawley and cash.
- November 3, 1988: Bert Blyleven and Kevin Trudeau (minors) were traded by the Twins to the California Angels for Mike Cook, Paul Sorrento, and Rob Wassenaar (minors).
- December 12, 1988: Randy Bush was signed as a free agent by the Twins.
- December 21, 1988: John Christensen was released by the Twins.
- February 13, 1989: Lee Tunnell was signed as a free agent by the Twins.
- March 26, 1989: Keith Atherton was traded by the Minnesota Twins to the Cleveland Indians for Carmelo Castillo.
Read more about this topic: 1989 Minnesota Twins Season