Lou Gehrig, with 23 Grand Slams
who holds the mariners career record for grand slams how many
Barry Bonds hit eleven grand slams during his career.
Lou Gehrig hit 23 Grand Slams during his career, which is a MLB record.
Lou Gehrig (23).
Kenny Rogers gave up 11 grand slams and Nolan Ryan gave up 10 grand slams.
23 Career Grand Slams. Lou Gehrig
Lou Gehrig with 23