In hockey, the term "injection" is used to describe a player who pushes the ball from the back line into the attackers' hands at the top of the circle. The injection has to be carried out very quickly and accurately, to enable the stopper to put the ball in place for a flick, drag-flick or hit, before the opposition can block or dispossess. Though a highly technical skill, the term, in the context of set-piece play within hockey, is quite basic, and is never heard in relation to cricket, boxing or table tennis.