1990 Seattle Mariners Trades and Transactions

Transactions listed are from October 1 of previous year to April 1 of the following year.

• November 2, 1989

  Signed Brian Giles as a free agent.

• November 13, 1989

  Signed Jeff Schaefer as a free agent.

• December 4, 1989

  Mike Dunne drafted by the San Diego Padres in the 1989 rule 5 draft.

• December 7, 1989

  Signed Pete O'Brien as a free agent.

• December 15, 1989

  Signed Matt Young as a free agent.

• December 18, 1989

  Signed Vance Lovelace as a free agent.

• December 27, 1989

  Signed Bryan Clark as a free agent.

• January 24, 1990

  Traded Jim Presley to the Atlanta Braves. Received Ken Pennington (minors) and Gary Eave.

• February 15, 1990

  Signed Eddy Díaz as an amateur free agent.

• February 27, 1990

  Traded Jerry Goff to the Montreal Expos. Received Pat Pacillo.

• April 5, 1990

  Selected Brent Knackert off waivers from the New York Mets.

• April 6, 1990

  Signed Mike Brumley as a free agent.

  Mike Kingery granted Free Agency.

  Released Tom Niedenfuer.

• April 25, 1990

  Released Jerry Reed.

• April 28, 1990

  Signed Marino Santana as an amateur free agent.

• May 1, 1990

  Dennis Powell granted Free Agency.

• May 18, 1990

  Traded Lee Hancock to the Pittsburgh Pirates. Received Scott Medvin.

• May 24, 1990

  Traded Gary Eave to the San Francisco Giants. Received Russ Swan.

• June 4, 1990

  Drafted Marc Newfield in the 1st round (6th pick) of the 1990 amateur draft. Player signed June 10, 1990.

  Drafted Dave Fleming in the 3rd round of the 1990 amateur draft. Player signed June 18, 1990.

  Drafted Bret Boone in the 5th round of the 1990 amateur draft. Player signed June 8, 1990.

  Drafted Mike Hampton in the 6th round of the 1990 amateur draft. Player signed June 4, 1990.

  Drafted Kevin King in the 7th round of the 1990 amateur draft.

  Drafted John Cummings in the 8th round of the 1990 amateur draft. Player signed June 8, 1990.

  Drafted Jim Converse in the 16th round of the 1990 amateur draft. Player signed June 11, 1990.

  Drafted Albie Lopez in the 19th round of the 1990 amateur draft, but did not sign the player.

• June 6, 1990

  Traded Mickey Brantley to the Milwaukee Brewers. Received Frank Bolick.

• June 18, 1990

  Traded Darnell Coles to the Detroit Tigers. Received Tracy Jones.

• June 19, 1990

  Traded Mario Díaz to the New York Mets. Received Brian Givens.

• August 26, 1990

  Signed Arquimedez Pozo as an amateur free agent.

• August 29, 1990

  Signed Ken Griffey as a free agent.

• September 18, 1990

  Released Rick Renteria.

• September 27, 1990

  Released Mike Brumley.

• October 5, 1990

  Matt Sinatro granted Free Agency.

• October 12, 1990

  Released Jeffrey Leonard.

• October 15, 1990

  Brian Giles granted Free Agency.

  Vance Lovelace granted Free Agency.

• November 5, 1990

  Signed Matt Sinatro as a free agent.

  Ken Griffey granted Free Agency.

  Matt Young granted Free Agency.

• November 13, 1990

  Signed Giomar Guevara as an amateur free agent.

• November 15, 1990

  Signed Steve Springer as a free agent.

• November 25, 1990

  Signed Rich Amaral as a free agent.

• December 10, 1990

  Traded Scott Taylor to the Atlanta Braves. Received Dennis Hood (minors).

• December 17, 1990

  Signed Ken Griffey as a free agent.

• December 19, 1990

  Signed Bill Krueger as a free agent.

• December 21, 1990

  Signed Chuck Jackson as a free agent.

  Signed Alonzo Powell as a free agent.

• January 21, 1991

  Traded Todd Haney to the Detroit Tigers. Received Dave Richards (minors).

• February 20, 1991

  Signed Shawn Barton as a free agent.

• February 27, 1991

  Signed Gerónimo Berroa as a free agent.

• March 21, 1991

  Selected Alan Cockrell off waivers from the Cleveland Indians.

• March 26, 1991

  José Meléndez selected by the San Diego Padres off waivers.

• March 28, 1991

  Gerónimo Berroa player rights sold to the Cleveland Indians.

• April 1, 1991

  Traded Mike Gardiner to the Boston Red Sox. Received Rob Murphy.