Passing Eddie Murray, Red Sox left fielder Manny Ramirez hits his 20th career grand slam, now the second-most in major league history. The Dominican Republic native trails only Yankee legend Lou Gehrig, who holds the major league record with 23.

On July 5, 2005 Passing Eddie Murray, Red Sox left fielder Manny Ramirez hits his 20th career grand slam, now the second-most in major league history. The Dominican Republic native trails only Yankee legend Lou Gehrig, who holds the major league record with 23.

Source
Baseball Reference July 5