Fair catch catch is called a "mark"; see mark (rugby) and mark (Australian football) for more information (however in Australian Rules Football the player is not protected from the opposition team while attempting a mark). Fair catches featured in some extinct forms of football, and they have been abolished in other modern codes. In Rugby league the defensive player attempting to catch the ball cannot be tackled whilst in the air, though the attacking players can contest the ball by attempting to catch it themselves. A player who successfully catches the ball is able to be tackled only once they have landed
Comparison of American football and rugby union may be passed backwards an unlimited number of times, but in American football the ball may be passed forward once (and only once) as long as the passer is behind the line of scrimmage, as opposed to rugby union, where the ball cannot be passed forward but only kicked or carried forward. Even when kicked, only the kicker or players behind the kicker are allowed to catch or interfere with play. In both sports, play is stopped when the ball goes out of bounds, when a player or team commits a foul or after any scoring play. In American football,