DUNEDIN, NEW ZEALAND - APRIL 13:  (L-R) Catherine, Duchess of Cambridge, Prince William, Duke of Cambridge and All Black player Ritchie McCaw watch 'Rippa Rugby' in the Forstyth Barr Stadium on day 7 of a Royal Tour to New Zealand on April 13, 2014 in Dunedin, New Zealand. The Duke and Duchess of Cambridge are on a three-week tour of Australia and New Zealand, the first official trip overseas with their son, Prince George of Cambridge.  (Photo by Chris Jackson/Getty Images)