Offseason
- October 13, 1969: Johnny Roseboro was released by the Twins.
- December 1, 1969: 1969 rule 5 draft
- Mike Sadek was drafted from the Twins by the San Francisco Giants.
- Hal Haydel was drafted by the Twins from the San Francisco Giants.
- December 10, 1969: Graig Nettles, Dean Chance, Bob Miller, and Ted Uhlaender were traded by the Twins to the Cleveland Indians for Luis Tiant and Stan Williams.
- March 21, 1970: Joe Grzenda and Charley Walters were traded by the Twins to the Washington Senators for Brant Alyea.
Read more about this topic: 1970 Minnesota Twins Season