Currently, The Yankees Alex Rodriguez and the Royals Yuniesky Betancourt are the major league leaders with three grand slams each in 2010.
Through the 2013 season, there were 6452 grand slams hit in baseball history. The most grand slams in a season happened in the year 2000 when 176 grand slams were hit.
Alex Rodriguez has hit three grand slams during the 2010 season.
Lou Gherig
Lou Gehrig with 23
McCovey
Mariano Rivera has given up 4 grand slams in his career. The most current grand slam yielded by Mariano was on May 16, 2010, hit by Jason Kubel of the Minnesota Twins.
For his entire career he hit 6 grand slams and oddly enough they all were hit in 1987.
Andre ethier has hit 2 grand slams so far
In 2010, the Yankees grand slams were hit by Alex Rodriguez (3), Robinson Cano (2), Jorge Posada (2), Mark Teixeira (1), Curtis Granderson (1) and Brett Gardner (1).
Alex Rodriguez hit 3 grand slams during the 2007 season.
well when i went to the padres game they made padres had 10 and the pittburgh had 4
3