Led by the “Bash Brothers” of Mark McGwire and Jose Canseco, the Oakland A’s won 103 games during the regular season and swept the Boston Red Sox in the American League Championship Series, sending the franchise to their third straight World Series appearance.

22 members of the 1990 American League champion Oakland A’s have signed this 1990 World Series baseball. Signatures include Hall of Famers Rickey Henderson (in red pen) and Harold Baines (in blue pen). Other notable signatures include Jose Canseco (in red pen), Mark McGwire (in red pen), Lance Blankenship, and Carney Landsford. Tony LaRussa’s signature has been deemed a clubhouse version. This baseball comes with a LOA from JSA.

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