篮下进攻犯规（Offensive fouls in the post） 背身进攻中违规情形（Back downs）
篮下进攻犯规之一：背身进攻时，攻方球员顶撞开已经占位的守方球员属进攻犯规
Offensive Foul in the post, back down by offensive player
Commentary:
This is an example of an offensive foul for dislodging. Offensive
players may not use their bodies to illegal dislodge their legal
opponents. On this play, the contact initiated by the
offensive player dislodges the post defender who had obtained a
legal guarding position. This is an offensive foul.
篮下进攻犯规之二：背身进攻时，攻方球员用身体和前导退顶撞已占位守方球员，属进攻犯规
Offensive Foul in the post, back down and turn by offensive
player
Commentary:
This is an example of an offensive foul for dislodging. Offensive
players may not use their bodies to illegal dislodge their legal
opponents. On this play, the offensive post player initates
contact with his legal defender, dislodging him from his legally
obtained position. The offensive player uses both his body
and his lead arm to illegally dislodge his opponent.
篮下进攻犯规之三：背身进攻时，攻方球员连续碰撞已占位守方球员（前两次轻微），而第三次撞翻对手属进攻犯规
Offensive Foul in the post, back down by offensive player, multiple
bumps
Commentary:
This is an example of an offensive foul for dislodging. Offensive
players may not use their bodies to illegally dislodge their legal
opponents. On this play, the first two bumps by the
offensive post player on this back down are marginal. However, the
third contact initiated by the offensive player dislodges the
post defender who had obtained a legal guarding
position. 篮下背身进攻不违规情形：守方球员试图通过提升与攻方球员对抗强度而促使对方吃到犯规，不料自己失误摔倒，裁判将不吹罚进攻犯规
Not an Offensive Foul, flop by post defender, defender enhances
contact, legal play
