Fair catch the ball touches the ground. A fair catch may be followed by a snap or a type of free kick — the fair catch kick — at his team's choice, and an expired playing period may be extended if the free kick is chosen. The NCAA abolished the fair catch from its version of American football in 1950, but restored it in 1951, minus the option of kicking from the mark of the catch, which is retained in rules of the National Federation of State High School Associations and the National Football League. If the kicking team commits kick catching
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