Babe Ruth was a professional baseball player.
Babe Ruth . Nicknamed `` The Bambino '' and `` The Sultan of Swat '' , he began his MLB career as a stellar left-handed pitcher for the Boston Red Sox , but achieved his greatest fame as a slugging outfielder for the New York Yankees . The Boston Red Sox are an American professional baseball team based in Boston , Massachusetts . Major League Baseball ( MLB ) is a professional baseball organization , the oldest of the four major professional sports leagues in the United States and Canada . In baseball , the pitcher is the player who throws the baseball from the pitcher 's mound toward the catcher to begin each play , with the goal of retiring a batter , who attempts to either make contact with the pitched ball or draw a walk .