Fair catch kick rugby have eliminated the rule; rugby league abolished the goal from mark in 1922, and rugby union removed it in 1977. Australian rules football has retained the rule, and it is a vital part of the Australian game; a "fair catch" of a ball kicked more than 15 metres in the air is called a "mark", and the player making the mark is then awarded a free kick. The fair catch kick has been present in the National Football League (NFL) rulebook since the league's inception, and also remains in the National Federation of State High School Associations (NFHS) rulebook.
Comparison of Canadian football and rugby union running backs, receivers, and quarterbacks have roles similar to backs in rugby. Because of the playing time, number of pauses, number of players and the nature of the game in general, rugby players will typically need higher physical endurance than Canadian football players while more short-term bursts of physical strength, power, and speed are required in Canadian football (amongst equivalent positions and weights). Collisions between players in rugby union tend to last significantly longer than Canadian football, in which collisions are more often "hits" in which the momentum of the player is enough to bring the other player to ground