Transactions
Transactions listed are from October 1 of previous year to April 1 of the following year.
- November 4, 1988
Alfredo Griffin granted Free Agency.
Mike Marshall granted Free Agency.
Jesse Orosco granted Free Agency.
Alejandro Peña granted Free Agency.
Steve Sax granted Free Agency.
Mario Soto granted Free Agency.
- November 7, 1988
Signed Alfredo Griffin as a free agent.
Signed Alejandro Peña as a free agent.
- November 13, 1988
Signed Mike Marshall as a free agent.
- November 21, 1988
Signed Roberto Mejía as an amateur free agent.
- December 4, 1988
Traded Juan Bell, Brian Holton and Ken Howell to the Baltimore Orioles. Received Eddie Murray.
- December 5, 1988
José Mota drafted by the Oakland Athletics in the 1988 rule 5 draft.
- December 7, 1988
Signed Mario Soto as a free agent.
- December 10, 1988
Signed Willie Randolph as a free agent.
- December 21, 1988
Released Danny Heep.
- January 27, 1989
Signed Dave Walsh as a free agent.
- March 12, 1989
Traded Mike Devereaux to the Baltimore Orioles. Received Mike Morgan.
- March 27, 1989
Traded Gil Reyes to the Montreal Expos. Received Jeff Fischer.
- May 23, 1989
Purchased Jim Pankovits from the Pittsburgh Pirates.
- June 5, 1989
Drafted Tom Goodwin in the 1st round (22nd pick) of the 1989 amateur draft. Player signed June 14, 1989.
Drafted Jamie McAndrew in the 1st round (28th pick) of the 1989 amateur draft. Player signed June 10, 1989.
Drafted Phil Nevin in the 3rd round of the 1989 amateur draft, but did not sign the player.
Drafted Kevin Jordan in the 10th round of the 1989 amateur draft, but did not sign the player.
Drafted Matt Howard in the 34th round of the 1989 amateur draft. Player signed June 8, 1989.
Drafted Eric Young Sr. in the 43rd round of the 1989 amateur draft. Player signed June 15, 1989.
Drafted Garey Ingram in the 44th round of the 1989 amateur draft. Player signed June 3, 1990.
- July 16, 1989
Released Ricky Horton.
- July 17, 1989
Traded Steve Green (minors) and Domingo Michel (minors) to the Detroit Tigers. Received Billy Bean.
- July 18, 1989
Traded Mariano Duncan and Tim Leary to the Cincinnati Reds. Received Kal Daniels and Lenny Harris.
- July 22, 1989
Traded Javier Ortiz to the Houston Astros. Received a player to be named later. The Houston Astros sent Ed Vosberg (August 1, 1989) to the Los Angeles Dodgers to complete the trade.
- October 15, 1989
Jim Pankovits granted Free Agency.
Ed Vosberg granted Free Agency.
- October 17, 1989
Signed Félix Rodríguez as an amateur free agent.
- November 9, 1989
Traded Tracy Woodson to the Chicago White Sox. Received Jeff Bittiger.
- November 12, 1989
Signed Henry Blanco as an amateur free agent.
- November 13, 1989
Dave Anderson granted Free Agency.
John Shelby granted Free Agency.
John Tudor granted Free Agency.
Fernando Valenzuela granted Free Agency.
- December 4, 1989
William Brennan drafted by the Houston Astros in the 1989 rule 5 draft.
Signed José Parra as an amateur free agent.
- December 5, 1989
Drafted Mike Christopher from the New York Yankees in the 1989 minor league draft.
- December 7, 1989
Signed Jim Gott as a free agent.
- December 12, 1989
Traded Manny Francois (minors) and Joe Kesselmark (minors) to the Cleveland Indians. Received Steve Davis.
- December 15, 1989
Signed Fernando Valenzuela as a free agent.
- December 19, 1989
Signed John Shelby as a free agent.
Mike Davis granted Free Agency.
- December 20, 1989
Traded Mike Marshall and Alejandro Peña to the New York Mets. Received Juan Samuel.
- December 21, 1989
Signed Hubie Brooks as a free agent.
Signed Mike Maddux as a free agent.
- January 9, 1990
Signed Butch Davis as a free agent.
- January 26, 1990
Signed Pat Perry as a free agent.
- February 10, 1990
Signed Roberto Durán as an amateur free agent.
Signed Willis Otáñez as an amateur free agent.
- February 20, 1990
Signed Don Aase as a free agent.
- April 1, 1990
Traded Franklin Stubbs to the Houston Astros. Received Terry Wells.
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