A few weeks after this incident, the AFL introduced a new rule allowing the interchange steward to inform the umpires of interchange errors: specifically, when a player enters the field before the player he is replacing has left the field, or when a player is interchanged without using the interchange gate. In each case, the penalty is a free kick in the centre of the ground or at the spot of the ball at the time, whichever is the greater penalty against the offending team. If the offending team is not in possession of the ball, the umpire shall impose an additional 50-metre penalty against them. Any score or free kicks given to the opposition when an interchange infringement has occurred are cancelled.