The ICC currently only allows a player to be replaced during a match because of concussion.

The practice allows a player to overturn a referee's call if it is considered inappropriate and does not benefit that player's team.

The definition of "Out of Bounds" allows a player to "stand out of bounds to play a ball lying within bounds."

Of the system that allows a player three challenges per set, he said: We have electronic line calling even though we don't need it.