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 American football and rugby union can play equally well in a variety of positions and most will play in the same position from youth. Every position in rugby has its own unique name (except for number 8) and associated skill base. In most club and schoolhouse American Football, the majority of players play both offense and defense, only being substituted for injury. Substitutes in American football can return to the game at any stoppage in play. In rugby union, any player substituted off for any reason, except for a 'blood' injury, is prohibited from returning to the field of play (with the possible exception of