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 all five of the black players that were still in the subsequent National Football League left the league. Several teams were kicked out of the league that year, and with a large number of available, talented white players, black players were generally the first to be removed, never to return again. For the next few years, a black player would sporadically pop up on a team: Harold Bradley Sr. played one season with the Chicago Cardinals in 1928, and David Myers played for two New York City-based teams in 1930 and 1931. In contrast, ethnic minorities of other races were