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 American football and rugby union and in current form, would now be extremely dangerous. An example of this is the trend for players tackling head first rather than leading with a shoulder, which has led to some serious neck injuries, including breaks, even with the helmets used. In previous years with less padding, tackling more closely resembled tackles in rugby union, with less severe impacts and less severe structural injuries. Comparison of American football and rugby union A comparison of American football and rugby union is possible because of the games' shared origins, despite their dissimilarities. In the event of a tackle in rugby the