US. Major League Baseball (Major League Baseball, MLB) have 30 existing teams now, divided into the National League and American League, where National League (NationalLeague, NL) has 16 teams, the American League (American League, AL) have 14 items, while two coalition has again were divided into the Eastern Conference, Central Division and Western Division 3 Division. Major League Baseball all 30 teams, there is one from neighbors, Canada (Toronto Blue Jays), and the others 29 all from USA.