Violent acts of any nature on the court will not be tolerated. Players involved in altercations will be ejected, fined and/or suspended.

Officials have been instructed to eject a player who throws a punch, whether or not it connects, or an elbow which makes contact above shoulder level. If elbow contact is shoulder level or below, it shall be left to the discretion of the official as to whether the player is ejected. Even if a punch or an elbow goes undetected by the officials during the game, but is detected during a review of a videotape, that player will be penalized.

There is absolutely no justification for fighting in an NBA game. The fact that you may feel provoked by another player is not an acceptable excuse. If a player takes it upon himself to retaliate, he can expect to be subject to appropriate penalties.