Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Jeffrey Michael "Jeff" Terpko (born October 16, 1950 in Sayre, Pennsylvania) is former Major League Baseball pitcher. Terpko played for the Texas Rangers in 1974 and 1976 and the Montreal Expos in 1977. 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.