(i) Rules related to Libero player:
• The Libero is allowed to replace any player in a back row position.
• He/she is restricted to perform as a back row player and is not allowed to complete an attack hit from anywhere (including playing court and free zone) if at the moment of the contact the ball is entirely higher than the top of the net.
• He/she may not serve, block or attempt to block.
(ii) When three players attempts or tries to block the ball from coming at the same time it is called a ‘‘triple block ’.
(iii) A point scored after multiple exchange of rally across the net.
