Front rowers who can scrummage well are set to command premium salaries, writes the New Zealand Herald's Gregor Paul.
"It's a new take on sink or swim - it's get rich or lose your contract. This is the brave new world of properly refereed scrums.
"With the pre-engagement phase now being effectively controlled, the world will soon discover who can scrummage and who can't. The technically deficient will be weeded out.
"Those who can handle the contest will become the best-paid players in world rugby. Props are now the make-or-break men of every side. Any team that doesn't have a couple of decent scrummaging props might as well kiss goodbye to their title dreams."