of two scissor blades coming together. Some authors differentiate the "scissors kick" as similar to a bicycle kick, but done sideways or at an angle; other authors consider them to be the same move. In languages other than English, its name also reflects the action it resembles. Sports journalist Alejandro Cisternas, from Chilean newspaper El Mercurio, compiled a list of these names. In most cases, they either refer to the kick's scissor-like motion, such as the French ciseaux retourné (returned scissor) and the Greek psalidaki, or to its bicycle-like action, such as the Portuguese pontapé de bicicleta. In other languages, the nature of the action is described: German Fallrückzieher (falling backward kick), Polish przewrotka (overturn kick), Dutch omhaal (turnaround drag), and Italian rovesciata (reversed kick). Exceptions to these naming patterns are found in languages that designate the move by making reference to a location, such as the Norwegian brassespark (Brazilian kick). This exception is most significant in Spanish, where a fierce controversy exists between Chile and Peru—as part of their historic sports rivalry—over the naming of the bicycle kick; Chileans know it as the chilena, while Peruvians call it the chalaca. Regardless, the move is also known in Spanish by the less tendentious names of tijera and tijereta—both a reference to the manoeuvre's scissor-like motion. Execution A bicycle kick's successful performance generally requires great skill and athleticism. To perform a bicycle kick, the ball must be airborne so that the player can hit it while doing a backflip; the ball can either come in the air towards the player, such as from a cross, or the player can flick the ball up into the air. The non-kicking leg should rise first to help propel the body up while the kicking leg makes the jump. While making the leap, the body's back should move rearwards until it is parallel to the ground. As the body reaches peak height, the kicking leg should snap toward the ball as the non-kicking leg is simultaneously brought down to increase the kick's power. Vision should stay focused on the ball until the foot strikes it. The arms should be used for balance and to diminish the impact from the fall. Bicycle kicks are generally done in two situations, one defensive and the other offensive. A defensive bicycle kick is done when a player facing their side's goal uses the action to clear the ball in