Defensive Foul, Not Verticality, defender jumps toward offensive player

This is an example of a defensive foul for non-verticality. To be considered legal, a defender may come in contact with an opponent if that contact is made while the defender is jumping vertically in an attempt to defend the shot. Note also that the defender must establish legal guarding position prior to the start of the offensive player’s upward motion. On this play, the defender jumps TOWARD the shooter, and since the defender does not maintain a completely vertical position, and he initiates the contact on the play, a defensive foul is called.