Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Johnny Berger (August 27, 1901 May 7, 1979) was a Major League Baseball catcher. He played with the Philadelphia Athletics in 1922 and the Washington Senators in 1927. Major League Baseball (MLB) is the highest level of professional baseball in the United States and Canada, consisting of teams that play in the National League and the American League. The two leagues merged in 2000 into a single MLB organization led by the Commissioner of Baseball after 100 years as separate legal entities.