England are likely to be hit with a fine for their innovative response to the All Blacks' haka before their World Cup semi-final win on Saturday.

The brainchild of coach Eddie Jones, the English players spread in a V-shaped formation to face the New Zealander's trademark haka in a display of defiance and solidarity in Yokohama.

But World Rugby's rules dictate that no player is allowed to cross the halfway line during the haka, and six of the English team breached that guideline, despite officials telling them to back off.