Golden Baseball League Winter League has just completed its third season. In the first three years, over 130 Arizona Winter League players have been signed to professional contracts. Two of those players, Scott Richmond and Sergio Romo, are now pitching in the major leagues. The 2009 Arizona Winter League began play on January 31, 2009 and has expanded to 8 teams and almost 200 players. On April 3, 2009, the Golden Baseball League announced its second instructional league known as the Arizona Summer League, which is patterned after the AWL. This league consists of three teams, the Canada Miners, El Centro Imperials and
Major League Baseball Major League Baseball Major League Baseball (MLB) is a professional baseball organization, the oldest of the four major professional sports leagues in the United States and Canada. A total of 30 teams play in the National League (NL) and American League (AL), with 15 teams in each league. The NL and AL were formed as separate legal entities in 1876 and 1901 respectively. After cooperating but remaining legally separate entities beginning in 1903, the leagues merged into a single organization led by the Commissioner of Baseball in 2000. The organization also oversees Minor League Baseball, which comprises 256 teams affiliated