Basketball point guard, who implements the coach's game plan by managing the execution of offensive and defensive plays (player positioning). Informally, players may play three-on-three, two-on-two, and one-on-one. Invented in 1891 by Canadian-American gym teacher James Naismith in Springfield, Massachusetts, United States, basketball has evolved to become one of the world's most popular and widely viewed sports. The National Basketball Association (NBA) is the most significant professional basketball league in the world in terms of popularity, salaries, talent, and level of competition. Outside North America, the top clubs from national leagues qualify to continental championships such as the Euroleague and FIBA
James Naismith could help its track athletes to keep in shape and explicitly emphasized to "make it fair for all players and not too rough." In his attempt to think up a new game, Naismith was guided by three main thoughts. Firstly, he analyzed the most popular games of those times (rugby, lacrosse, soccer, football, hockey, and baseball); Naismith noticed the hazards of a ball and concluded that the big soft soccer ball was safest. Secondly, he saw that most physical contact occurred while running with the ball, dribbling or hitting it, so he decided that passing was the only legal option.