On April 3, 1987, the Chicago Cubs trade seemingly over-the-hill pitcher Dennis Eckersley to the Oakland A’s for three minor leaguers. Eckersley will emerge as the game’s dominant closer, saving 291 games over the next eight seasons, and earning election to the Hall of Fame in 2004.
St. Louis Cardinals trade ace pitcher Mort Cooper to the Boston Braves for pitcher Red Barrett and $60,000 in cash
May 23, 1945
February 8, 1982
January 5, 1946