Former All-Star outfielder Dave Henderson, who delivered one of the best-known home runs in Major League Baseball playoff history, died in Seattle on Sunday after suffering a heart attack at the age of 57. Henderson, known affectionately as "Hendu," died at Harborview Medical Center in Seattle. Henderson played in the major leagues with the Seattle Mariners (1981-86), Boston Red Sox (1986-87), San Francisco Giants (1987), Oakland Athletics (1988-93) and Kansas City Royals (1994).