On September 20, 2013 — New York Yankee designated hitter Alex Rodriguez establishes a major league record with his 24th career grand slam, going deep off George Kontos in the team’s 5-1 victory over the San Francisco Giants at Yankee Stadium. The two-out seventh-inning bases-loaded round-tripper surpasses the mark established in 1938 by fellow Yankee Lou Gehrig.


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