Offseason
- December 6, 1989: John Franco and Don Brown (minors) were traded by the Reds to the New York Mets for Randy Myers and Kip Gross.
- December 12, 1989: Tim Leary and Van Snider were traded by the Reds to the New York Yankees for Hal Morris and Rodney Imes (minors).
Read more about this topic: 1990 Cincinnati Reds