MLB (Baseball)
Major League Baseball (MLB) represents the oldest and most popular of all the four major American sports. The sport is now contested by a total of 30 teams playing in the two leagues, the American League (AL) and National League (NL), with 15 teams in each league. The AL and NL operated as separate legal entities from 1901 and 1876 respectively. At one time rival organisation, the two leagues are now under the joint administration of the Commissioner of Baseball.