Offseason
- December 11, 1987: Jesse Orosco was traded as part of a 3-team trade by the Mets to the Los Angeles Dodgers. The Dodgers sent Jack Savage to the Mets, and the Oakland Athletics sent Kevin Tapani and Wally Whitehurst to the Mets. The Dodgers sent Bob Welch and Matt Young to the Athletics, and the Athletics sent Alfredo Griffin and Jay Howell to the Dodgers.
- December 11, 1987: Rafael Santana and Victor Garcia (minors) were traded by the Mets to the New York Yankees for Darren Reed, Phil Lombardi, and Steve Frey.
- March 26, 1988: Randy Milligan and Scott Henion (minors) were traded by the Mets to the Pittsburgh Pirates for Mackey Sasser and Tim Drummond.
Read more about this topic: 1988 New York Mets Season