Lou Gehrig (23).
who holds the mariners career record for grand slams how many
Manny Ramirez
As of the start of the 2008 season, that would be Ernie Banks with 12.
Lou Gehrig struck out 790 times during his career.
16. The record is 23, held by Lou Gehrig.
Nolan Ryan gave up 10 grand slams during his career to hold the MLB record.
Lou Gehrig, who played first base for the New York Yankees between 1923-1939, holds the all time MLB grand slam record with 23. Alex Rodriguez tied Lou Gehrig's Record of 23 Grand Slams on June 12th 2012. Alex Rodriguez broke the record in 2013, with his 24th Grand Slam.
For his entire career he hit 6 grand slams and oddly enough they all were hit in 1987.
Lou Gehrig holds the record for most grand slams in a career at 23, but Alex Rodriguez has a reasonable chance of breaking that. Check the link below for a list of every MLB player who has hit at least two grand slams in a career. This includes Tony Cloninger, a pitcher who hit two grand slams in one game -- and hit only nine other home runs in his entire career.
Lou Gehrig with 23 grand slams
Lou Gehrig holds the Major League Baseball (MLB) record for career Grand Slams with 23; however, as of 2012, two (2) active players, Alex Rodriguez and Manny Ramirez have recorded 22 and 21 career Grand Slams, respectively.
Kenny Rogers gave up 11 grand slams and Nolan Ryan gave up 10 grand slams.