Mario Mendoza Aizpuru (born December 26, 1950) is a Mexican former professional baseball infielder. Mendoza, a lifetime .215 hitter, is best known for being the source of the name for the threshold for batting ineptitude, the "Mendoza Line", meaning a batting average of .200. Mendoza managed in the minor leagues and in Mexico after his Major League Baseball (MLB) playing career. He is a member of the Mexican League Hall of Fame.