Offensive Foul, dribbler dislodges legal perimeter defender

This is an example of an offensive foul for dislodging. Defensive players cannot be dislodged from their legally obtained positions. The on ball defender on this play has obtained a legal guarding position, and the offenisve player then backs right into him. The impact is more than marginal, and it disldoges the defender from his legally obtained spot. This is an offensive foul.