Most grand slam home runs in a Major League Baseball career

According to Official Guinness Records,

The Major League Baseball (MLB) record for most career grand slam home runs (a home run hit with the bases loaded) is 25, set by Alex Rodriguez (USA) while playing for the Seattle Mariners, Texas Rangers and New York Yankees (USA) since 1994.n/a

For a complete list of 2015 records, please visit 2015 Guinness Records in United States.

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