Comparison of American football and rugby union possession of the ball at their own 20-yard (25 yard line in College Football) line. An important difference between the two sports involves the aftermath of a score. In American football, the scoring team kicks off, except after a safety. In rugby union, the team conceding the score kicks off (in rugby sevens, a variant of rugby union featuring seven players per side, the scoring team kicks off). An American football team consists of an offensive unit, a defensive unit and a "special teams" unit (involved in kicking and kick returns). Only eleven players can be on the field at
Black players in professional American football Black players in professional American football Details of the history of black players in professional American football depend on the professional football league considered, which includes the National Football League (NFL); the American Football League (AFL), a rival league from 1960 through 1969 which eventually merged with the NFL; and the All-America Football Conference (AAFC), which existed from 1946 to 1949. Charles Follis is believed to be the first black professional football player, having played for the Shelby Steamfitters from 1902 to 1906. Follis, a two sport athlete, was paid for his work beginning in 1904. From its inception in