By NEALE HARVEY

Test swansong: Luke Whitelock on the charge for New Zealand against Japan in 2018
PICTURE: Getty Images

FRANCE-BASED All Blacks flanker Luke Whitelock is backing his older brother Sam to continue a remarkable family dynasty by making it all the way to the 2023 World Cup.
Whitelock, who is 29 and currently playing for Pau, is the youngest of four brothers raised on the family dairy farm at Linton, near Palmerston North on New Zealand’s North Island.
He, Sam and George are All Blacks while Adam starred for New Zealand on the Sevens circuit.
All represented Crusade...