Offseason
- December 6, 1989: Dennis Lamp was signed as a Free Agent with the Boston Red Sox.
- December 6, 1989: Jeff Reardon signed as a Free Agent with the Boston Red Sox.
- December 19, 1989: Rick Cerone was released by the Boston Red Sox.
- December 20, 1989: Sam Horn was released by the Boston Red Sox.
- February 15, 1990: Bill Buckner signed as a Free Agent with the Boston Red Sox.
- February 15, 1990: Greg A. Harris was signed as a Free Agent with the Boston Red Sox.
Read more about this topic: 1990 Boston Red Sox Season