An "air ball" in basketball is an unobstructed shot that completely misses the hoop, rim, net, and backboard. It is considered a lost cause and should be declared by the referee as such. An air ball does not count for any number on the scorecard. In baseball, an air ball is usually called a strike three if it hits the ground before reaching the plate. Otherwise, it's a hit by pitch. An air ball that doesn't reach the ground is a hit by pitch if it is not caught by the pitcher; otherwise, it's a walk. In football, an air ball is usually declared a touchback unless it is caught by one of the returners, in which case it is returned to the 20-yard line. In hockey, an air ball is usually called a goal because it goes in off the skate of the player who shoots it. If it hits someone on the ice, it is a penalty shot.