Head coach Jono Gibbes has made seven changes to the New Zealand U20 squad that defeated Argentina on Tuesday.
Blues U20 captain Tristyn Cook thought he'd missed out on higher honours before getting a surprise phone call on a Sunday.
New Zealand Under 20 are the most successful nation in the World Rugby Junior Championship winning the title six times since its inception in 2008.
The New Zealand squad features 31 of the country's finest young athletes, with selectors having identified plenty of promising talent at the recent U20 Super Rugby tournament played last month in Taupo.
