NBA (National Basketball Association; American Professional Basketball League; USL) is the highest level basketball event in the world, and the broadcasting signal covers the whole world. USL is also the cradle of cultivating basketball stars, including Wilt Chamberlain, Oscar Robertson, Michael Jordan, Kobe Bryant, LeBron James, Shaquille O'Neal and Yao Ming, Tim Duncan and other basketball stars. The MLB has 30 teams (29 in the United States and the other from Toronto, Canada), belonging to two leagues: the Eastern League and the Western League; each league consists of three divisions; each division has five teams.
