Offseason
- October 23, 1987: Dickie Noles was returned to the Chicago Cubs by the Detroit Tigers as part of earlier loan.
- December 8, 1987: Lee Smith was traded by the Chicago Cubs to the Boston Red Sox for Al Nipper and Calvin Schiraldi.
- December 14, 1987: Vance Law was signed as a Free Agent with the Chicago Cubs.
- February 12, 1988: Goose Gossage was traded by the San Diego Padres with Ray Hayward to the Chicago Cubs for Keith Moreland and Mike Brumley.
- March 31, 1988: Mike Bielecki was traded by the Pittsburgh Pirates to the Chicago Cubs for Mike Curtis (minors).
Read more about this topic: 1988 Chicago Cubs Season