Richie McCaw faces World Cup final ban if he is cited for elbowing Francois Louw

Richie McCaw could miss the World Cup final if he is deemed to have deliberately elbowed Francois Louw in New Zealand’s 20-18 victory over South Africa.

The All Blacks captain struck Louw on the forehead 20 minutes into Saturday’s last four showdown at Twickenham, sending the openside flanker reeling with a blow that is sure to interest the citing officer.