Albert Pujols, the major league home run leader, hits his fourth grand slam of the year, a team record, as the Cardinals dispose of the Reds, 7 – 4. He now has 350 career dingers, becoming the third-youngest to reach the mark, after Alex Rodriguez and Ken Griffey Jr.

On July 3, 2009 Albert Pujols, the major league home run leader, hits his fourth grand slam of the year, a team record, as the Cardinals dispose of the Reds, 7 – 4. He now has 350 career dingers, becoming the third-youngest to reach the mark, after Alex Rodriguez and Ken Griffey Jr.

Source

Baseball Reference July 3