Teams play basketball.
Basketball . The National Basketball Association ( NBA ) is the most popular and widely considered to be the highest level of professional basketball in the world and NBA players are the world 's best paid athletes by average annual salary per player . National Basketball Association . It has 30 teams ( 29 in the United States and 1 in Canada ) , and is an active member of USA Basketball ( USAB ) , which is recognized by FIBA ( also known as the International Basketball Federation ) as the national governing body for basketball in the United States .