“This is an example of a defensive foul for blocking. The defensive player, Victor Oladipo, initially establishes legal guarding position in the path of the offensive player with the ball, Kristaps Porzingis. But the offensive player then moves to his right and he ‘slips’ by the defender. At this point, the defender tries to re-establish legal position, but he is unsuccessful as the contact occurs before he re-establishes his position. This is a defensive foul. To get into a legal position, the defender needs to establish himself in the path of the offensive player before contact is made and before the offensive player starts his upward shooting motion.”