Players who have hit grand slams in AL and NL playoff history:
Shane Victorino, Boston vs. Detroit, Game 6 LCS, 2013
David Ortiz, Boston vs. Detroit, Game 2 LCS, 2013.
Nelson Cruz, Texas vs. Detroit, Game 2 LCS, 2011.
Robinson Cano, New York vs. Detroit, Game 1 LDS, 2011.
J.D. Drew, Boston vs. Cleveland, Game 6 LCS, 2007.
Johnny Damon, Boston at New York, Game 7 LCS, 2004.
Vladimir Guerrero, Anaheim at Boston, Game 3 LDS, 2004.
Ricky Ledee, New York at Boston, Game 4 LCS, 1999.
Troy O’Leary, Boston at Cleveland, Game 5 LDS, 1999.
Jim Thome, Cleveland vs. Boston, Game 2 LDS, 1999.
Jim Thome, Cleveland at New York, Game 6 LCS, 1998.
Paul O’Neill, New York at Cleveland, Game 3 LDS, 1997.
Albert Belle, Cleveland vs. Baltimore, Game 3 LDS, 1996.
Bobby Bonilla, Baltimore vs. Cleveland, Game 1 LDS, 1996.
Edgar Martinez, Seattle vs. New York, Game 4 LDS, 1995.
Don Baylor, California at Milwaukee, Game 4 LCS, 1982.
Mike Cuellar, Baltimore at Minnesota, Game 1 LCS, 1970.
Brandon Crawford, San Francisco at Pittsburgh, WC, 2014.
Buster Posey, San Francisco at Cincinnati, Game 5 LDS, 2012.
Ryan Roberts, Arizona vs. Milwaukee, Game 4 LDS, 2011.
Paul Goldschmidt, Arizona vs. Milwaukee, Game 3 LDS, 2011.
Shane Victorino, Philadelphia vs. Milwaukee, Game 2 LDS, 2008.
James Loney, Los Angeles at Chicago, Game 1 LDS, 2008.
Lance Berkman, Houston vs. Atlanta, Game 4 LDS, 2005.
Adam LaRoche, Atlanta at Houston, Game 4 LDS, 2005.
Reggie Sanders, St. Louis vs. San Diego, Game 1 LDS, 2005.
Aramis Ramirez, Chicago at Florida, Game 4 LCS, 2003.
Edgardo Alfonzo, New York at Arizona, Game 1 LDS, 1999.
Andres Galarraga, Atlanta at San Diego, Game 4 LCS, 1998.
Eddie Perez, Atlanta at Chicago, Game 3 LDS, 1998.
Ryan Klesko, Atlanta vs. Chicago, Game 1 LDS, 1998.
Devon White, Florida at San Francisco, Game 3 LDS, 1997.
Gary Gaetti, St. Louis vs. Atlanta, Game 2 LCS, 1996.
Mark Lewis, Cincinnati vs. Los Angeles, Game 3 LDS, 1995.
Ron Gant, Atlanta vs. Pittsburgh, Game 2 LCS, 1992.
Will Clark, San Francisco at Chicago, Game 1 LCS, 1989.
Dusty Baker, Los Angeles vs. Philadelphia, Game 2 LCS, 1977.
Ron Cey, Los Angeles vs. Philadelphia, Game 1 LCS, 1977.