New Zealand’s Canterbury Crusaders piled on 28 unanswered points in the last 27 minutes to crush Australia’s New South Wales Waratahs 34-7 in a Super 14 match at Christchurch on Friday. The Waratahs had overturned a 6-0 halftime deficit to snatch a 7-6 lead when number eight Wycliff Palu crashed over early in the second term.