In Sport Psychology a reference is made to a certain correlation between the time of observation of the
opponent’s position in the defense line and the moment of attack: “beyond the net, players in possession of the ball that don’t participate directly in the actions of the game in progress can get acquainted with the opponent’s place on the defense line and also with the most vulnerable areas that remain uncovered. After perceiving and recording the position of the players in the game over the net, the player responsible for the attack hit will react automatically in the two phases involved, which are inseparable: the perception and reaction” (Jarvis, M. 2010).