Alex Rodriguez is a baseball player.
In Major League Baseball ( MLB ) , the 500 home run club is a group of batters who have hit 500 or more regular-season home runs in their careers . Alex Rodriguez . Rodríguez is the career record holder for grand slams with 25 . In baseball , a grand slam is a home run hit with all three bases occupied by baserunners ( `` bases loaded '' ) , thereby scoring four runs -- the most possible in one play . In baseball , a home run ( abbreviated HR ) is scored when the ball is hit in such a way that the batter is able to circle the bases and reach home